From: owner-ibis-users@ (ibis-users) To: ibis-users-digest@eda.org Subject: ibis-users V1 #18 Reply-To: Sender: owner-ibis-users@ Errors-To: owner-ibis-users@ Precedence: bulk ibis-users Friday, February 28 2003 Volume 01 : Number 018 ---------------------------------------------------------------------- Date: Tue, 18 Feb 2003 14:39:18 +0100 From: Gaspard Thaller Subject: Re: [IBIS-Users] ERROR in IBIS model - --------------050003000006070600020504 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Anshuli, I had a look at your IBIS file. On the [Pulldown] data you got: - - 2 rows repeated for -0.90V - - one -1.00V data row between the 7.10V and 7.20V values And on the [Pullup] data: - - 2 rows repeated for -0.90V - - one 0.00V data row between the 7.10V and 7.20V values Remove the redundant/incorrect data and check again. It could do the trick. Gaspard Anshuli Goel wrote: > Attached is the control file that I am using for this. I have defined > only one corner . > | data0 - TFP501 DATA BUFFER : tristatable output buffer, with ST=0. > | > > | > | Specify the IBIS version and file revision number. > | > [IBIS Ver] 2.1 > [File rev] 0 > [File name] ubt062.ibs > > > |[Clean up] > [Clamp tolerance] 0 > | > | Add some comments to identify the file. > | > [date] Jan 29, 2002 > [source] From TFP501 DATA BUFFER spice models > > [Disclaimer] Please be aware that in the absence of a written agreement > +Texas Instruments(TI) assumes no liability for: > +(1) The accuracy of the IBIS models provided to your company > +(2) The proper functioning of these Models in your design > + or for any resulting applications;or > +(3)Infringement of patents,copyrights or intellectual > + property rights resulting from your use of these models. > + TI provides IBIS Models as a service to our customers and > + therefore reserves the right to limit distribution of the > + Models. > > [Copyright] Property of Texas Instruments Incorporated. > +Unauthorised reproduction and/or distribution is strictly prohibited. > +This product is protected under copyright law and trade > +secret law as an unpublished work. > +Created 2000,(C) Copyright 2000,Texas Instruments Inc., > +All Rights Reserved.These commodities are under the U.S. > +Government distribution license control.As such,they are not > +to be re-exported without the prior approval of the U.S. > +Department of Commerce. > > | > | Give the spice type. Allowable values are hspice, pspice, spice2, > | spice3 and spectre. > | > [Spice type] spice2 > [Spice command] "spice3 -tmp /tmp -init /dev/null %s %s /dev/null >%s > 2>&1" > > | > | Now specify some global parameters. These parameters will apply to > | _all_ the models in this file. > | > | Note on the [Temperature range] keyword: Since this is a CMOS circuit, > | the min column contains the highest temperature, since this temperature > | causes or amplifies the "min" (slow, weak) behavior, while the max > | column contains the lowest temperature, since this temperature > causes or > | amplifies the "max" (fast, strong) behavior. If this were a bipolar > | circuit, these temperature values would be reversed. > | > [temperature range] 0 0 0 > [voltage range] 3.6 3.6 3.6 > [sim time] 10ns > [vil] 0 0 0 > [vih] 1.65 1.65 1.65 > [rload] 50 > [Tr] 1n 1n 1n > [Tf] 1n 1n 1n > > | > | Specify the default pin parasitics > | > |[R_pkg] 0.1 0.097 0.123 > |[L_pkg] 1.5nH 2.0nH 2.5nH > |[C_pkg] 1.5pF 1.0pF 2.0pF > [C_comp] 0.046pf 0.046pf 0.046pf > > | > | Component Description > | > [Component] OUTPUT DRIVER > [manufacturer] Texas Instruments > > | > | Specify the SPICE file where the circuit is located. > | > | ST made high in the SPICE netlist > | > | > [Spice file] UBT062.spi > > | > | Now specify the pin list. Since we're just creating an IBIS file for > | the driver, we'll use a very short pin list. > | > | The pin list formats can be found in doc/s2ibis2.txt. Briefly, the > | first line of each pin is of the form > | > | pin_name spice_node signal_name model_name > | > | If a pin description has more than one line (e.g. the first pin in the > | pin list below), the second line is of the form > | > | -> input_pin enable_pin > | > | Note that the second line must begin with the symbol "->". > [Pin] > Y Y3 Y tristate_driver > -> A GZ > A A A dummy > GZ GZ GZ dummy > VDDS VDDS VDDS POWER > VSSS VSSS VSSS GND > > | > | Now we give the particulars of the model "tristate_driver". It is of > | type "3-State" (allowable types may be found in doc/s2ibis2.txt) and is > | non-inverting. We want to use models from the file "spectre.mod" for > | typ, min and max simulations, and we want to include both a rising and > | falling waveform in our IBIS model. Both the rising and falling > | wveforms have a 500 ohm load; the rising waveform has the load > | grounded, while the falling waveform has the load connected to 3.3V. > | Neither waveform includes any other test fixture or package parasitics. > | > [Model] tristate_driver > [Model type] 3-state > [Polarity] Non-inverting > [Enable] active-low > [Model file] strong strong strong > [Rising waveform] 50 0 0 0 NA NA NA NA NA > [Rising waveform] 50 3.6 3.6 3.6 NA NA NA NA NA > [Falling waveform] 50 3.6 3.6 3.6 NA NA NA NA NA > [Falling waveform] 50 0 0 0 NA NA NA NA NA > |[Vmeas] 1.5 > > | > | Now specify stuff for the model "input". > [Model] dummy > [nomodel] > > ------------------------------------------------------------------------ > > IBIS model > > |************************************************************************ > | IBIS file ubt062.ibs created by s2ibis2 version 1.1 > | North Carolina State University Electronics Research Laboratory 1995 > |************************************************************************ > | > [IBIS ver] 2.1 > [File name] ubt062.ibs > [File Rev] 0 > [Date] Jan 29, 2002 > [Source] From TFP501 DATA BUFFER spice models > [Disclaimer] Please be aware that in the absence of a written > agreement > Texas Instruments(TI) assumes no liability for: (1) The > accuracy of the IBIS models provided to your company > (2) The > proper functioning of these Models in your design or > for any > resulting applications;or (3)Infringement of > patents,copyrights or intellectual property rights > resulting > from your use of these models. TI provides IBIS > Models as a > service to our customers and therefore reserves the > right to > limit distribution of the Models. > [Copyright] Property of Texas Instruments Incorporated. Unauthorised > reproduction and/or distribution is strictly > prohibited. This > product is protected under copyright law and trade > secret law > as an unpublished work. Created 2000,(C) Copyright > 2000,Texas > Instruments Inc., All Rights Reserved.These > commodities are > under the U.S. Government distribution license > control.As > such,they are not to be re-exported without the prior > approval > of the U.S. Department of Commerce. > | > |************************************************************************ > | Component OUTPUT DRIVER > |************************************************************************ > | > [Component] OUTPUT DRIVER > [Manufacturer] Texas Instruments > [Package] > | variable typ min max > R_pkg 0.000 0.000 0.000 > L_pkg 0.000H 0.000H 0.000H > C_pkg 0.000F 0.000F 0.000F > | > [Pin] signal_name model_name R_pin L_pin > C_pin > Y Y tristate_driver > | A A dummy > | GZ GZ dummy > VDDS VDDS POWER > VSSS VSSS GND > | > |************************************************************************ > | Model tristate_driver > |************************************************************************ > | > [Model] tristate_driver > Model_type 3-state > Polarity Non-Inverting > Enable Active-Low > C_comp 46.00fF 46.00fF 46.00fF > | > | > [Temperature Range] 0.000 0.000 0.000 > [Voltage Range] 3.60V 3.60V 3.60V > [Pulldown] > | voltage I(typ) I(min) I(max) > | > -3.60 -0.50mA -0.50mA -0.50mA > -3.30 -0.57mA -0.57mA -0.57mA > -3.00 -0.66mA -0.66mA -0.66mA > -2.70 -0.79mA -0.79mA -0.79mA > -2.40 -0.97mA -0.97mA -0.97mA > -2.10 -1.26mA -1.26mA -1.26mA > -1.80 -1.79mA -1.79mA -1.79mA > -1.50 -3.02mA -3.02mA -3.02mA > -1.20 -8.26mA -8.26mA -8.26mA > -0.90 -42.48mA -42.48mA -42.48mA > -0.90 -42.48mA -42.48mA -42.48mA > -0.80 -42.27mA -42.27mA -42.27mA > -0.70 -39.43mA -39.43mA -39.43mA > -0.60 -35.54mA -35.54mA -35.54mA > -0.50 -30.28mA -30.28mA -30.28mA > -0.40 -24.44mA -24.44mA -24.44mA > -0.30 -18.46mA -18.46mA -18.46mA > -0.20 -12.39mA -12.39mA -12.39mA > -0.10 -6.24mA -6.24mA -6.24mA > 0.00 0.35nA 0.35nA 0.35nA > 0.10 6.17mA 6.17mA 6.17mA > 0.20 12.11mA 12.11mA 12.11mA > 0.30 17.83mA 17.83mA 17.83mA > 0.40 23.32mA 23.32mA 23.32mA > 0.50 28.58mA 28.58mA 28.58mA > 0.60 33.62mA 33.62mA 33.62mA > 0.70 38.42mA 38.42mA 38.42mA > 0.80 42.98mA 42.98mA 42.98mA > 0.90 47.31mA 47.31mA 47.31mA > 1.00 51.40mA 51.40mA 51.40mA > 1.10 55.25mA 55.25mA 55.25mA > 1.20 58.85mA 58.85mA 58.85mA > 1.30 62.21mA 62.21mA 62.21mA > 1.40 65.32mA 65.32mA 65.32mA > 1.50 68.17mA 68.17mA 68.17mA > 1.60 70.77mA 70.77mA 70.77mA > 1.70 73.10mA 73.10mA 73.10mA > 1.80 75.14mA 75.14mA 75.14mA > 1.90 76.86mA 76.86mA 76.86mA > 2.00 78.18mA 78.18mA 78.18mA > 2.10 79.13mA 79.13mA 79.13mA > 2.20 79.79mA 79.79mA 79.79mA > 2.30 80.27mA 80.27mA 80.27mA > 2.40 80.63mA 80.63mA 80.63mA > 2.50 80.92mA 80.92mA 80.92mA > 2.60 81.17mA 81.17mA 81.17mA > 2.70 81.38mA 81.38mA 81.38mA > 2.80 81.56mA 81.56mA 81.56mA > 2.90 81.73mA 81.73mA 81.73mA > 3.00 81.88mA 81.88mA 81.88mA > 3.10 82.03mA 82.03mA 82.03mA > 3.20 82.16mA 82.16mA 82.16mA > 3.30 82.29mA 82.29mA 82.29mA > 3.40 82.41mA 82.41mA 82.41mA > 3.50 82.52mA 82.52mA 82.52mA > 3.60 82.64mA 82.64mA 82.64mA > 3.70 82.75mA 82.75mA 82.75mA > 3.80 82.86mA 82.86mA 82.86mA > 3.90 82.97mA 82.97mA 82.97mA > 4.00 83.08mA 83.08mA 83.08mA > 4.10 83.19mA 83.19mA 83.19mA > 4.20 83.50mA 83.50mA 83.50mA > 4.30 84.03mA 84.03mA 84.03mA > 4.40 83.64mA 83.64mA 83.64mA > 4.50 83.85mA 83.85mA 83.85mA > 4.60 84.09mA 84.09mA 84.09mA > 4.70 84.35mA 84.35mA 84.35mA > 5.00 85.25mA 85.25mA 85.25mA > 5.30 86.39mA 86.39mA 86.39mA > 5.60 87.87mA 87.87mA 87.87mA > 5.90 89.74mA 89.74mA 89.74mA > 6.20 92.09mA 92.09mA 92.09mA > 6.50 94.97mA 94.97mA 94.97mA > 6.80 98.43mA 98.43mA 98.43mA > 7.10 0.10A 0.10A 0.10A > -1.00 -3.50A -0.96A -0.96A > 7.20 0.10A 0.10A 0.10A > | > [Pullup] > | voltage I(typ) I(min) I(max) > | > -3.60 0.12A 0.12A 0.12A > -3.30 0.11A 0.11A 0.11A > -3.00 95.23mA 95.23mA 95.23mA > -2.70 84.49mA 84.49mA 84.49mA > -2.40 73.79mA 73.79mA 73.79mA > -2.10 63.18mA 63.18mA 63.18mA > -1.80 52.74mA 52.74mA 52.74mA > -1.50 43.30mA 43.30mA 43.30mA > -1.20 34.49mA 34.49mA 34.49mA > -0.90 25.71mA 25.71mA 25.71mA > -0.90 25.71mA 25.71mA 25.71mA > -0.80 22.79mA 22.79mA 22.79mA > -0.70 19.89mA 19.89mA 19.89mA > -0.60 17.02mA 17.02mA 17.02mA > -0.50 14.14mA 14.14mA 14.14mA > -0.40 11.38mA 11.38mA 11.38mA > -0.30 8.61mA 8.61mA 8.61mA > -0.20 5.74mA 5.74mA 5.74mA > -0.10 2.87mA 2.87mA 2.87mA > 0.00 0.12nA 0.12nA 0.12nA > 0.10 -2.85mA -2.85mA -2.85mA > 0.20 -5.68mA -5.68mA -5.68mA > 0.30 -8.47mA -8.47mA -8.47mA > 0.40 -11.24mA -11.24mA -11.24mA > 0.50 -13.98mA -13.98mA -13.98mA > 0.60 -16.69mA -16.69mA -16.69mA > 0.70 -19.37mA -19.37mA -19.37mA > 0.80 -22.01mA -22.01mA -22.01mA > 0.90 -24.62mA -24.62mA -24.62mA > 1.00 -27.20mA -27.20mA -27.20mA > 1.10 -29.74mA -29.74mA -29.74mA > 1.20 -32.25mA -32.25mA -32.25mA > 1.30 -34.72mA -34.72mA -34.72mA > 1.40 -37.15mA -37.15mA -37.15mA > 1.50 -39.54mA -39.54mA -39.54mA > 1.60 -41.90mA -41.90mA -41.90mA > 1.70 -44.21mA -44.21mA -44.21mA > 1.80 -46.47mA -46.47mA -46.47mA > 1.90 -48.69mA -48.69mA -48.69mA > 2.00 -50.87mA -50.87mA -50.87mA > 2.10 -53.00mA -53.00mA -53.00mA > 2.20 -55.07mA -55.07mA -55.07mA > 2.30 -57.10mA -57.10mA -57.10mA > 2.40 -59.07mA -59.07mA -59.07mA > 2.50 -60.99mA -60.99mA -60.99mA > 2.60 -62.84mA -62.84mA -62.84mA > 2.70 -64.64mA -64.64mA -64.64mA > 2.80 -66.37mA -66.37mA -66.37mA > 2.90 -68.04mA -68.04mA -68.04mA > 3.00 -69.64mA -69.64mA -69.64mA > 3.10 -71.17mA -71.17mA -71.17mA > 3.20 -72.62mA -72.62mA -72.62mA > 3.30 -74.01mA -74.01mA -74.01mA > 3.40 -75.31mA -75.31mA -75.31mA > 3.50 -76.55mA -76.55mA -76.55mA > 3.60 -77.72mA -77.72mA -77.72mA > 3.70 -78.81mA -78.81mA -78.81mA > 3.80 -79.85mA -79.85mA -79.85mA > 3.90 -80.83mA -80.83mA -80.83mA > 4.00 -81.75mA -81.75mA -81.75mA > 4.10 -82.61mA -82.61mA -82.61mA > 4.20 -83.43mA -83.43mA -83.43mA > 4.30 -84.23mA -84.23mA -84.23mA > 4.40 -85.34mA -85.34mA -85.34mA > 4.50 -87.68mA -87.68mA -87.68mA > 4.60 -91.48mA -91.48mA -91.48mA > 4.70 -97.30mA -97.30mA -97.30mA > 5.00 -0.17A -0.17A -0.17A > 5.30 -0.28A -0.28A -0.28A > 5.60 -0.39A -0.39A -0.39A > 5.90 -0.50A -0.50A -0.50A > 6.20 -0.62A -0.62A -0.62A > 6.50 -0.73A -0.73A -0.73A > 6.80 -0.84A -0.84A -0.84A > 7.10 -0.96A -0.96A -0.96A > 0.00 0.000A 0.000A 0.000A > 7.20 -1.00A -1.00A -1.00A > | > [GND_clamp] > | voltage I(typ) I(min) I(max) > | > -3.60 -1.00A -1.00A -1.00A > -3.50 -0.96A -0.96A -0.96A > -3.40 -0.92A -0.92A -0.92A > -3.30 -0.88A -0.88A -0.88A > -3.20 -0.84A -0.84A -0.84A > -3.10 -0.80A -0.80A -0.80A > -3.00 -0.77A -0.77A -0.77A > -2.90 -0.73A -0.73A -0.73A > -2.80 -0.69A -0.69A -0.69A > -2.70 -0.65A -0.65A -0.65A > -2.60 -0.61A -0.61A -0.61A > -2.50 -0.58A -0.58A -0.58A > -2.40 -0.54A -0.54A -0.54A > -2.30 -0.50A -0.50A -0.50A > -2.20 -0.46A -0.46A -0.46A > -2.10 -0.43A -0.43A -0.43A > -2.00 -0.39A -0.39A -0.39A > -1.90 -0.35A -0.35A -0.35A > -1.80 -0.31A -0.31A -0.31A > -1.70 -0.28A -0.28A -0.28A > -1.60 -0.24A -0.24A -0.24A > -1.50 -0.20A -0.20A -0.20A > -1.40 -0.17A -0.17A -0.17A > -1.30 -0.13A -0.13A -0.13A > -1.20 -95.41mA -95.41mA -95.41mA > -1.10 -62.02mA -62.02mA -62.02mA > -1.00 -32.45mA -32.45mA -32.45mA > -0.90 -13.17mA -13.17mA -13.17mA > -0.80 -6.39mA -6.39mA -6.39mA > -0.70 -2.78mA -2.78mA -2.78mA > -0.60 -0.68mA -0.68mA -0.68mA > -0.50 -69.97uA -69.97uA -69.97uA > -0.40 -3.65uA -3.65uA -3.65uA > -0.30 -0.11uA -0.11uA -0.11uA > -0.20 -5.21nA -5.21nA -5.21nA > -0.10 -2.44nA -2.44nA -2.44nA > 0.00 -2.13nA -2.13nA -2.13nA > 0.10 -1.89nA -1.89nA -1.89nA > 0.20 -1.68nA -1.68nA -1.68nA > 0.30 -1.49nA -1.49nA -1.49nA > 0.40 -1.32nA -1.32nA -1.32nA > 0.50 -1.17nA -1.17nA -1.17nA > 0.60 -1.02nA -1.02nA -1.02nA > 0.70 -0.89nA -0.89nA -0.89nA > 0.80 -0.78nA -0.78nA -0.78nA > 0.90 -0.67nA -0.67nA -0.67nA > 1.00 -0.57nA -0.57nA -0.57nA > 1.10 -0.48nA -0.48nA -0.48nA > 1.20 -0.40nA -0.40nA -0.40nA > 1.30 -0.33nA -0.33nA -0.33nA > 1.40 -0.26nA -0.26nA -0.26nA > 1.50 -0.20nA -0.20nA -0.20nA > 1.60 -0.14nA -0.14nA -0.14nA > 1.70 -92.03pA -92.03pA -92.03pA > 1.80 -44.85pA -44.85pA -44.85pA > 1.90 -1.42pA -1.42pA -1.42pA > 2.00 38.68pA 38.68pA 38.68pA > 2.10 75.84pA 75.84pA 75.84pA > 2.20 0.11nA 0.11nA 0.11nA > 2.30 0.14nA 0.14nA 0.14nA > 2.40 0.17nA 0.17nA 0.17nA > 2.50 0.20nA 0.20nA 0.20nA > 2.60 0.23nA 0.23nA 0.23nA > 2.70 0.25nA 0.25nA 0.25nA > 2.80 0.28nA 0.28nA 0.28nA > 2.90 0.30nA 0.30nA 0.30nA > 3.00 0.32nA 0.32nA 0.32nA > 3.10 0.34nA 0.34nA 0.34nA > 3.20 0.36nA 0.36nA 0.36nA > 3.30 0.37nA 0.37nA 0.37nA > 3.40 0.38nA 0.38nA 0.38nA > 3.50 0.40nA 0.40nA 0.40nA > 3.60 0.56nA 0.56nA 0.56nA > | > [POWER_clamp] > | voltage I(typ) I(min) I(max) > | > -3.60 3.00mA 3.00mA 3.00mA > -3.50 2.89mA 2.89mA 2.89mA > -3.40 2.78mA 2.78mA 2.78mA > -3.30 2.67mA 2.67mA 2.67mA > -3.20 2.56mA 2.56mA 2.56mA > -3.10 2.46mA 2.46mA 2.46mA > -3.00 2.35mA 2.35mA 2.35mA > -2.90 2.24mA 2.24mA 2.24mA > -2.80 2.14mA 2.14mA 2.14mA > -2.70 2.03mA 2.03mA 2.03mA > -2.60 1.93mA 1.93mA 1.93mA > -2.50 1.82mA 1.82mA 1.82mA > -2.40 1.72mA 1.72mA 1.72mA > -2.30 1.62mA 1.62mA 1.62mA > -2.20 1.53mA 1.53mA 1.53mA > -2.10 1.43mA 1.43mA 1.43mA > -2.00 1.34mA 1.34mA 1.34mA > -1.90 1.25mA 1.25mA 1.25mA > -1.80 1.15mA 1.15mA 1.15mA > -1.70 1.06mA 1.06mA 1.06mA > -1.60 0.97mA 0.97mA 0.97mA > -1.50 0.88mA 0.88mA 0.88mA > -1.40 0.78mA 0.78mA 0.78mA > -1.30 0.69mA 0.69mA 0.69mA > -1.20 0.60mA 0.60mA 0.60mA > -1.10 0.51mA 0.51mA 0.51mA > -1.00 0.42mA 0.42mA 0.42mA > -0.90 0.33mA 0.33mA 0.33mA > -0.80 0.25mA 0.25mA 0.25mA > -0.70 0.16mA 0.16mA 0.16mA > -0.60 85.73uA 85.73uA 85.73uA > -0.50 0.68mA 0.68mA 0.68mA > -0.40 0.25mA 0.25mA 0.25mA > -0.30 8.01uA 8.01uA 8.01uA > -0.20 68.87nA 68.87nA 68.87nA > -0.10 3.39nA 3.39nA 3.39nA > 0.00 0.56nA 0.56nA 0.56nA > | > [Ramp] > | variable typ min max > dV/dt_r 0.83/0.74n 0.83/0.74n 0.83/0.74n > dV/dt_f 1.11/0.79n 1.11/0.79n 1.11/0.79n > R_load = 25.00 > | > [Rising Waveform] > R_fixture = 25.00 > V_fixture = 0.000 > V_fixture_min = 0.000 > V_fixture_max = 0.000 > | time V(typ) V(min) V(max) > | > 0.000S 17.33nV 17.33nV 17.33nV > 0.20nS 17.84nV 17.84nV 17.84nV > 0.40nS 17.67nV 17.67nV 17.67nV > 0.60nS 1.29uV 1.29uV 1.29uV > 0.80nS 17.99uV 17.99uV 17.99uV > 1.00nS 53.27mV 53.27mV 53.27mV > 1.20nS 0.23V 0.23V 0.23V > 1.40nS 0.59V 0.59V 0.59V > 1.60nS 0.75V 0.75V 0.75V > 1.80nS 0.84V 0.84V 0.84V > 2.00nS 1.09V 1.09V 1.09V > 2.20nS 1.35V 1.35V 1.35V > 2.40nS 1.37V 1.37V 1.37V > 2.60nS 1.38V 1.38V 1.38V > 2.80nS 1.38V 1.38V 1.38V > 3.00nS 1.38V 1.38V 1.38V > 3.20nS 1.38V 1.38V 1.38V > 3.40nS 1.38V 1.38V 1.38V > 3.60nS 1.38V 1.38V 1.38V > 3.80nS 1.38V 1.38V 1.38V > 4.00nS 1.38V 1.38V 1.38V > 4.20nS 1.38V 1.38V 1.38V > 4.40nS 1.38V 1.38V 1.38V > 4.60nS 1.38V 1.38V 1.38V > 4.80nS 1.38V 1.38V 1.38V > 5.00nS 1.38V 1.38V 1.38V > 5.20nS 1.38V 1.38V 1.38V > 5.40nS 1.38V 1.38V 1.38V > 5.60nS 1.38V 1.38V 1.38V > 5.80nS 1.38V 1.38V 1.38V > 6.00nS 1.38V 1.38V 1.38V > 6.20nS 1.38V 1.38V 1.38V > 6.40nS 1.38V 1.38V 1.38V > 6.60nS 1.38V 1.38V 1.38V > 6.80nS 1.38V 1.38V 1.38V > 7.00nS 1.38V 1.38V 1.38V > 7.20nS 1.38V 1.38V 1.38V > 7.40nS 1.38V 1.38V 1.38V > 7.60nS 1.38V 1.38V 1.38V > 7.80nS 1.38V 1.38V 1.38V > 8.00nS 1.38V 1.38V 1.38V > 8.20nS 1.38V 1.38V 1.38V > 8.40nS 1.38V 1.38V 1.38V > 8.60nS 1.38V 1.38V 1.38V > 8.80nS 1.38V 1.38V 1.38V > 9.00nS 1.38V 1.38V 1.38V > 9.20nS 1.38V 1.38V 1.38V > 9.40nS 1.38V 1.38V 1.38V > 9.60nS 1.38V 1.38V 1.38V > 9.80nS 1.38V 1.38V 1.38V > 10.00nS 1.38V 1.38V 1.38V > | > [Rising Waveform] > R_fixture = 25.00 > V_fixture = 3.60 > V_fixture_min = 3.60 > V_fixture_max = 3.60 > | time V(typ) V(min) V(max) > | > 0.000S 1.75V 1.75V 1.75V > 0.20nS 1.75V 1.75V 1.75V > 0.40nS 1.75V 1.75V 1.75V > 0.60nS 1.75V 1.75V 1.75V > 0.80nS 1.75V 1.75V 1.75V > 1.00nS 1.82V 1.82V 1.82V > 1.20nS 2.22V 2.22V 2.22V > 1.40nS 3.32V 3.32V 3.32V > 1.60nS 3.55V 3.55V 3.55V > 1.80nS 3.58V 3.58V 3.58V > 2.00nS 3.58V 3.58V 3.58V > 2.20nS 3.60V 3.60V 3.60V > 2.40nS 3.60V 3.60V 3.60V > 2.60nS 3.60V 3.60V 3.60V > 2.80nS 3.60V 3.60V 3.60V > 3.00nS 3.60V 3.60V 3.60V > 3.20nS 3.60V 3.60V 3.60V > 3.40nS 3.60V 3.60V 3.60V > 3.60nS 3.60V 3.60V 3.60V > 3.80nS 3.60V 3.60V 3.60V > 4.00nS 3.60V 3.60V 3.60V > 4.20nS 3.60V 3.60V 3.60V > 4.40nS 3.60V 3.60V 3.60V > 4.60nS 3.60V 3.60V 3.60V > 4.80nS 3.60V 3.60V 3.60V > 5.00nS 3.60V 3.60V 3.60V > 5.20nS 3.60V 3.60V 3.60V > 5.40nS 3.60V 3.60V 3.60V > 5.60nS 3.60V 3.60V 3.60V > 5.80nS 3.60V 3.60V 3.60V > 6.00nS 3.60V 3.60V 3.60V > 6.20nS 3.60V 3.60V 3.60V > 6.40nS 3.60V 3.60V 3.60V > 6.60nS 3.60V 3.60V 3.60V > 6.80nS 3.60V 3.60V 3.60V > 7.00nS 3.60V 3.60V 3.60V > 7.20nS 3.60V 3.60V 3.60V > 7.40nS 3.60V 3.60V 3.60V > 7.60nS 3.60V 3.60V 3.60V > 7.80nS 3.60V 3.60V 3.60V > 8.00nS 3.60V 3.60V 3.60V > 8.20nS 3.60V 3.60V 3.60V > 8.40nS 3.60V 3.60V 3.60V > 8.60nS 3.60V 3.60V 3.60V > 8.80nS 3.60V 3.60V 3.60V > 9.00nS 3.60V 3.60V 3.60V > 9.20nS 3.60V 3.60V 3.60V > 9.40nS 3.60V 3.60V 3.60V > 9.60nS 3.60V 3.60V 3.60V > 9.80nS 3.60V 3.60V 3.60V > 10.00nS 3.60V 3.60V 3.60V > | > [Falling Waveform] > R_fixture = 25.00 > V_fixture = 3.60 > V_fixture_min = 3.60 > V_fixture_max = 3.60 > | time V(typ) V(min) V(max) > | > 0.000S 3.60V 3.60V 3.60V > 0.20nS 3.60V 3.60V 3.60V > 0.40nS 3.60V 3.60V 3.60V > 0.60nS 3.60V 3.60V 3.60V > 0.80nS 3.60V 3.60V 3.60V > 1.00nS 3.60V 3.60V 3.60V > 1.20nS 3.60V 3.60V 3.60V > 1.40nS 3.59V 3.59V 3.59V > 1.60nS 3.33V 3.33V 3.33V > 1.80nS 3.05V 3.05V 3.05V > 2.00nS 2.84V 2.84V 2.84V > 2.20nS 2.80V 2.80V 2.80V > 2.40nS 2.34V 2.34V 2.34V > 2.60nS 1.98V 1.98V 1.98V > 2.80nS 1.85V 1.85V 1.85V > 3.00nS 1.79V 1.79V 1.79V > 3.20nS 1.77V 1.77V 1.77V > 3.40nS 1.76V 1.76V 1.76V > 3.60nS 1.75V 1.75V 1.75V > 3.80nS 1.75V 1.75V 1.75V > 4.00nS 1.75V 1.75V 1.75V > 4.20nS 1.75V 1.75V 1.75V > 4.40nS 1.75V 1.75V 1.75V > 4.60nS 1.75V 1.75V 1.75V > 4.80nS 1.75V 1.75V 1.75V > 5.00nS 1.75V 1.75V 1.75V > 5.20nS 1.75V 1.75V 1.75V > 5.40nS 1.75V 1.75V 1.75V > 5.60nS 1.75V 1.75V 1.75V > 5.80nS 1.75V 1.75V 1.75V > 6.00nS 1.75V 1.75V 1.75V > 6.20nS 1.75V 1.75V 1.75V > 6.40nS 1.75V 1.75V 1.75V > 6.60nS 1.75V 1.75V 1.75V > 6.80nS 1.75V 1.75V 1.75V > 7.00nS 1.75V 1.75V 1.75V > 7.20nS 1.75V 1.75V 1.75V > 7.40nS 1.75V 1.75V 1.75V > 7.60nS 1.75V 1.75V 1.75V > 7.80nS 1.75V 1.75V 1.75V > 8.00nS 1.75V 1.75V 1.75V > 8.20nS 1.75V 1.75V 1.75V > 8.40nS 1.75V 1.75V 1.75V > 8.60nS 1.75V 1.75V 1.75V > 8.80nS 1.75V 1.75V 1.75V > 9.00nS 1.75V 1.75V 1.75V > 9.20nS 1.75V 1.75V 1.75V > 9.40nS 1.75V 1.75V 1.75V > 9.60nS 1.75V 1.75V 1.75V > 9.80nS 1.75V 1.75V 1.75V > 10.00nS 1.75V 1.75V 1.75V > | > [Falling Waveform] > R_fixture = 25.00 > V_fixture = 0.000 > V_fixture_min = 0.000 > V_fixture_max = 0.000 > | time V(typ) V(min) V(max) > | > 0.000S 1.38V 1.38V 1.38V > 0.20nS 1.38V 1.38V 1.38V > 0.40nS 1.38V 1.38V 1.38V > 0.60nS 1.38V 1.38V 1.38V > 0.80nS 1.38V 1.38V 1.38V > 1.00nS 1.38V 1.38V 1.38V > 1.20nS 1.38V 1.38V 1.38V > 1.40nS 1.37V 1.37V 1.37V > 1.60nS 1.00V 1.00V 1.00V > 1.80nS 0.36V 0.36V 0.36V > 2.00nS 47.51mV 47.51mV 47.51mV > 2.20nS 17.40mV 17.40mV 17.40mV > 2.40nS 14.42mV 14.42mV 14.42mV > 2.60nS 2.09mV 2.09mV 2.09mV > 2.80nS 1.04mV 1.04mV 1.04mV > 3.00nS 0.57mV 0.57mV 0.57mV > 3.20nS 0.41mV 0.41mV 0.41mV > 3.40nS 0.28mV 0.28mV 0.28mV > 3.60nS 0.22mV 0.22mV 0.22mV > 3.80nS 0.19mV 0.19mV 0.19mV > 4.00nS 0.17mV 0.17mV 0.17mV > 4.20nS 0.15mV 0.15mV 0.15mV > 4.40nS 0.13mV 0.13mV 0.13mV > 4.60nS 0.12mV 0.12mV 0.12mV > 4.80nS 0.11mV 0.11mV 0.11mV > 5.00nS 0.10mV 0.10mV 0.10mV > 5.20nS 96.04uV 96.04uV 96.04uV > 5.40nS 87.15uV 87.15uV 87.15uV > 5.60nS 79.44uV 79.44uV 79.44uV > 5.80nS 75.28uV 75.28uV 75.28uV > 6.00nS 71.50uV 71.50uV 71.50uV > 6.20nS 66.97uV 66.97uV 66.97uV > 6.40nS 62.92uV 62.92uV 62.92uV > 6.60nS 59.19uV 59.19uV 59.19uV > 6.80nS 55.79uV 55.79uV 55.79uV > 7.00nS 52.75uV 52.75uV 52.75uV > 7.20nS 49.96uV 49.96uV 49.96uV > 7.40nS 46.77uV 46.77uV 46.77uV > 7.60nS 43.94uV 43.94uV 43.94uV > 7.80nS 42.43uV 42.43uV 42.43uV > 8.00nS 40.97uV 40.97uV 40.97uV > 8.20nS 39.12uV 39.12uV 39.12uV > 8.40nS 37.40uV 37.40uV 37.40uV > 8.60nS 35.80uV 35.80uV 35.80uV > 8.80nS 34.34uV 34.34uV 34.34uV > 9.00nS 33.00uV 33.00uV 33.00uV > 9.20nS 31.74uV 31.74uV 31.74uV > 9.40nS 30.80uV 30.80uV 30.80uV > 9.60nS 30.41uV 30.41uV 30.41uV > 9.80nS 30.76uV 30.76uV 30.76uV > 10.00nS 31.36uV 31.36uV 31.36uV > | > | End [Model] tristate_driver > | > | End [Component] OUTPUT DRIVER > | > [End] > > > > Regards > Anshuli > > - --------------050003000006070600020504 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Anshuli,

I had a look at your IBIS file.
On the [Pulldown] data you got:
- - 2 rows repeated for -0.90V
- - one -1.00V data row between the 7.10V and 7.20V values
And on the [Pullup] data:
- - 2 rows repeated for -0.90V
- one 0.00V data row between the 7.10V and 7.20V values
Remove the redundant/incorrect data and check again. It could do the trick.

Gaspard


Anshuli Goel wrote:
Attached is the control file that I am using for this. I have defined only one corner .
| data0 -  TFP501 DATA BUFFER : tristatable output buffer, with ST=0.
|

|
| Specify the IBIS version and file revision number.
|
[IBIS Ver]  2.1
[File rev]   0
[File name]     ubt062.ibs
 

|[Clean up]
[Clamp tolerance] 0
|
| Add some comments to identify the file.
|
[date]  Jan 29, 2002
[source] From TFP501 DATA BUFFER spice models

[Disclaimer] Please be aware that in the absence of a written agreement
+Texas Instruments(TI) assumes no liability for:
+(1) The accuracy of the IBIS models provided to your company
+(2) The proper functioning of these Models in your design
+    or for any resulting applications;or
+(3)Infringement of patents,copyrights or intellectual
+   property rights resulting from your use of these models.
+ TI provides IBIS Models as a service to our customers and
+ therefore reserves the right to limit distribution of the
+ Models.

[Copyright] Property of Texas Instruments Incorporated.
+Unauthorised reproduction and/or distribution is strictly prohibited.
+This product is protected under copyright law and trade
+secret law as an unpublished work.
+Created 2000,(C) Copyright 2000,Texas Instruments Inc.,
+All Rights Reserved.These commodities are under the U.S.
+Government distribution license control.As such,they are not
+to be re-exported without the prior approval of the U.S.
+Department of Commerce.

|
| Give the spice type.  Allowable values are hspice, pspice, spice2,
| spice3 and spectre.
|
[Spice type]  spice2
[Spice command] "spice3  -tmp /tmp -init /dev/null %s %s /dev/null >%s 2>&1"

|
| Now specify some global parameters. These parameters will apply to
| _all_ the models in this file.
|
| Note on the [Temperature range] keyword: Since this is a CMOS circuit,
| the min column contains the highest temperature, since this temperature
| causes or amplifies the "min" (slow, weak) behavior, while the max
| column contains the lowest temperature, since this temperature causes or
| amplifies the "max" (fast, strong) behavior.  If this were a bipolar
| circuit, these temperature values would be reversed.
|
[temperature range] 0 0 0
[voltage range] 3.6 3.6 3.6
[sim time] 10ns
[vil] 0 0 0
[vih] 1.65 1.65 1.65
[rload] 50
[Tr]  1n 1n 1n
[Tf]  1n 1n 1n

|
| Specify the default pin parasitics
|
|[R_pkg]   0.1  0.097 0.123
|[L_pkg]   1.5nH 2.0nH  2.5nH
|[C_pkg]   1.5pF   1.0pF   2.0pF
[C_comp]       0.046pf 0.046pf 0.046pf

|
| Component Description
|
[Component] OUTPUT DRIVER
[manufacturer] Texas Instruments

|
| Specify the SPICE file where the circuit is located.
|
| ST made high in the SPICE netlist
|
|
[Spice file] UBT062.spi

|
| Now specify the pin list.  Since we're just creating an IBIS file for
| the driver, we'll use a very short pin list.
|
| The pin list formats can be found in doc/s2ibis2.txt.  Briefly, the
| first line of each pin is of the form
|
|  pin_name  spice_node  signal_name  model_name
|
| If a pin description has more than one line (e.g. the first pin in the
| pin list below), the second line is of the form
|
| -> input_pin  enable_pin
|
| Note that the second line must begin with the symbol "->".
[Pin]
Y Y3 Y tristate_driver
- -> A GZ
A A A dummy
GZ GZ GZ dummy
VDDS VDDS VDDS POWER
VSSS VSSS VSSS GND

|
| Now we give the particulars of the model "tristate_driver".  It is of
| type "3-State" (allowable types may be found in doc/s2ibis2.txt) and is
| non-inverting. We want to use models from the file "spectre.mod" for
| typ, min and max simulations, and we want to include both a rising and
| falling waveform in our IBIS model. Both the rising and falling
| wveforms have a 500 ohm load; the rising waveform has the load
| grounded, while the falling waveform has the load connected to 3.3V.
| Neither waveform includes any other test fixture or package parasitics.
|
[Model] tristate_driver
[Model type] 3-state
[Polarity] Non-inverting
[Enable] active-low
[Model file] strong strong strong
[Rising waveform]  50 0 0 0  NA NA NA NA NA
[Rising waveform]  50 3.6 3.6 3.6  NA NA NA NA NA
[Falling waveform] 50 3.6 3.6 3.6 NA NA NA NA NA
[Falling waveform] 50 0 0 0  NA NA NA NA NA
|[Vmeas] 1.5

|
| Now specify stuff for the model "input".
[Model]  dummy
[nomodel]

IBIS model

|************************************************************************
| IBIS file ubt062.ibs created by s2ibis2 version 1.1
| North Carolina State University Electronics Research Laboratory  1995
|************************************************************************
|
[IBIS ver]       2.1
[File name]      ubt062.ibs
[File Rev]       0
[Date]           Jan 29, 2002
[Source]         From TFP501 DATA BUFFER spice models
[Disclaimer]     Please be aware that in the absence of a written agreement
                 Texas Instruments(TI) assumes no liability for: (1) The
                 accuracy of the IBIS models provided to your company (2) The
                 proper functioning of these Models in your design or for any
                 resulting applications;or (3)Infringement of
                 patents,copyrights or intellectual property rights resulting
                 from your use of these models. TI provides IBIS Models as a
                 service to our customers and therefore reserves the right to
                 limit distribution of the Models.
[Copyright]      Property of Texas Instruments Incorporated. Unauthorised
                 reproduction and/or distribution is strictly prohibited. This
                 product is protected under copyright law and trade secret law
                 as an unpublished work. Created 2000,(C) Copyright 2000,Texas
                 Instruments Inc., All Rights Reserved.These commodities are
                 under the U.S. Government distribution license control.As
                 such,they are not to be re-exported without the prior approval
                 of the U.S. Department of Commerce.
|
|************************************************************************
|                        Component OUTPUT DRIVER
|************************************************************************
|
[Component]      OUTPUT DRIVER
[Manufacturer]   Texas Instruments
[Package]
| variable       typ                 min                 max
R_pkg            0.000               0.000               0.000
L_pkg            0.000H              0.000H              0.000H
C_pkg            0.000F              0.000F              0.000F
|
[Pin]  signal_name          model_name           R_pin     L_pin     C_pin
Y      Y                    tristate_driver
| A    A                    dummy
| GZ   GZ                   dummy
VDDS   VDDS                 POWER
VSSS   VSSS                 GND
|
|************************************************************************
|                         Model tristate_driver
|************************************************************************
|
[Model]          tristate_driver
Model_type       3-state
Polarity         Non-Inverting
Enable           Active-Low
C_comp           46.00fF             46.00fF             46.00fF
|
|
[Temperature Range]       0.000               0.000               0.000
[Voltage Range]           3.60V               3.60V               3.60V
[Pulldown]
| voltage     I(typ)              I(min)              I(max)
|
  -3.60       -0.50mA             -0.50mA             -0.50mA
  -3.30       -0.57mA             -0.57mA             -0.57mA
  -3.00       -0.66mA             -0.66mA             -0.66mA
  -2.70       -0.79mA             -0.79mA             -0.79mA
  -2.40       -0.97mA             -0.97mA             -0.97mA
  -2.10       -1.26mA             -1.26mA             -1.26mA
  -1.80       -1.79mA             -1.79mA             -1.79mA
  -1.50       -3.02mA             -3.02mA             -3.02mA
  -1.20       -8.26mA             -8.26mA             -8.26mA
  -0.90      -42.48mA            -42.48mA            -42.48mA
  -0.90      -42.48mA            -42.48mA            -42.48mA
  -0.80      -42.27mA            -42.27mA            -42.27mA
  -0.70      -39.43mA            -39.43mA            -39.43mA
  -0.60      -35.54mA            -35.54mA            -35.54mA
  -0.50      -30.28mA            -30.28mA            -30.28mA
  -0.40      -24.44mA            -24.44mA            -24.44mA
  -0.30      -18.46mA            -18.46mA            -18.46mA
  -0.20      -12.39mA            -12.39mA            -12.39mA
  -0.10       -6.24mA             -6.24mA             -6.24mA
   0.00        0.35nA              0.35nA              0.35nA
   0.10        6.17mA              6.17mA              6.17mA
   0.20       12.11mA             12.11mA             12.11mA
   0.30       17.83mA             17.83mA             17.83mA
   0.40       23.32mA             23.32mA             23.32mA
   0.50       28.58mA             28.58mA             28.58mA
   0.60       33.62mA             33.62mA             33.62mA
   0.70       38.42mA             38.42mA             38.42mA
   0.80       42.98mA             42.98mA             42.98mA
   0.90       47.31mA             47.31mA             47.31mA
   1.00       51.40mA             51.40mA             51.40mA
   1.10       55.25mA             55.25mA             55.25mA
   1.20       58.85mA             58.85mA             58.85mA
   1.30       62.21mA             62.21mA             62.21mA
   1.40       65.32mA             65.32mA             65.32mA
   1.50       68.17mA             68.17mA             68.17mA
   1.60       70.77mA             70.77mA             70.77mA
   1.70       73.10mA             73.10mA             73.10mA
   1.80       75.14mA             75.14mA             75.14mA
   1.90       76.86mA             76.86mA             76.86mA
   2.00       78.18mA             78.18mA             78.18mA
   2.10       79.13mA             79.13mA             79.13mA
   2.20       79.79mA             79.79mA             79.79mA
   2.30       80.27mA             80.27mA             80.27mA
   2.40       80.63mA             80.63mA             80.63mA
   2.50       80.92mA             80.92mA             80.92mA
   2.60       81.17mA             81.17mA             81.17mA
   2.70       81.38mA             81.38mA             81.38mA
   2.80       81.56mA             81.56mA             81.56mA
   2.90       81.73mA             81.73mA             81.73mA
   3.00       81.88mA             81.88mA             81.88mA
   3.10       82.03mA             82.03mA             82.03mA
   3.20       82.16mA             82.16mA             82.16mA
   3.30       82.29mA             82.29mA             82.29mA
   3.40       82.41mA             82.41mA             82.41mA
   3.50       82.52mA             82.52mA             82.52mA
   3.60       82.64mA             82.64mA             82.64mA
   3.70       82.75mA             82.75mA             82.75mA
   3.80       82.86mA             82.86mA             82.86mA
   3.90       82.97mA             82.97mA             82.97mA
   4.00       83.08mA             83.08mA             83.08mA
   4.10       83.19mA             83.19mA             83.19mA
   4.20       83.50mA             83.50mA             83.50mA
   4.30       84.03mA             84.03mA             84.03mA
   4.40       83.64mA             83.64mA             83.64mA
   4.50       83.85mA             83.85mA             83.85mA
   4.60       84.09mA             84.09mA             84.09mA
   4.70       84.35mA             84.35mA             84.35mA
   5.00       85.25mA             85.25mA             85.25mA
   5.30       86.39mA             86.39mA             86.39mA
   5.60       87.87mA             87.87mA             87.87mA
   5.90       89.74mA             89.74mA             89.74mA
   6.20       92.09mA             92.09mA             92.09mA
   6.50       94.97mA             94.97mA             94.97mA
   6.80       98.43mA             98.43mA             98.43mA
   7.10        0.10A               0.10A               0.10A
  -1.00       -3.50A              -0.96A              -0.96A
   7.20        0.10A               0.10A               0.10A
|
[Pullup]
| voltage     I(typ)              I(min)              I(max)
|
  -3.60        0.12A               0.12A               0.12A
  -3.30        0.11A               0.11A               0.11A
  -3.00       95.23mA             95.23mA             95.23mA
  -2.70       84.49mA             84.49mA             84.49mA
  -2.40       73.79mA             73.79mA             73.79mA
  -2.10       63.18mA             63.18mA             63.18mA
  -1.80       52.74mA             52.74mA             52.74mA
  -1.50       43.30mA             43.30mA             43.30mA
  -1.20       34.49mA             34.49mA             34.49mA
  -0.90       25.71mA             25.71mA             25.71mA
  -0.90       25.71mA             25.71mA             25.71mA
  -0.80       22.79mA             22.79mA             22.79mA
  -0.70       19.89mA             19.89mA             19.89mA
  -0.60       17.02mA             17.02mA             17.02mA
  -0.50       14.14mA             14.14mA             14.14mA
  -0.40       11.38mA             11.38mA             11.38mA
  -0.30        8.61mA              8.61mA              8.61mA
  -0.20        5.74mA              5.74mA              5.74mA
  -0.10        2.87mA              2.87mA              2.87mA
   0.00        0.12nA              0.12nA              0.12nA
   0.10       -2.85mA             -2.85mA             -2.85mA
   0.20       -5.68mA             -5.68mA             -5.68mA
   0.30       -8.47mA             -8.47mA             -8.47mA
   0.40      -11.24mA            -11.24mA            -11.24mA
   0.50      -13.98mA            -13.98mA            -13.98mA
   0.60      -16.69mA            -16.69mA            -16.69mA
   0.70      -19.37mA            -19.37mA            -19.37mA
   0.80      -22.01mA            -22.01mA            -22.01mA
   0.90      -24.62mA            -24.62mA            -24.62mA
   1.00      -27.20mA            -27.20mA            -27.20mA
   1.10      -29.74mA            -29.74mA            -29.74mA
   1.20      -32.25mA            -32.25mA            -32.25mA
   1.30      -34.72mA            -34.72mA            -34.72mA
   1.40      -37.15mA            -37.15mA            -37.15mA
   1.50      -39.54mA            -39.54mA            -39.54mA
   1.60      -41.90mA            -41.90mA            -41.90mA
   1.70      -44.21mA            -44.21mA            -44.21mA
   1.80      -46.47mA            -46.47mA            -46.47mA
   1.90      -48.69mA            -48.69mA            -48.69mA
   2.00      -50.87mA            -50.87mA            -50.87mA
   2.10      -53.00mA            -53.00mA            -53.00mA
   2.20      -55.07mA            -55.07mA            -55.07mA
   2.30      -57.10mA            -57.10mA            -57.10mA
   2.40      -59.07mA            -59.07mA            -59.07mA
   2.50      -60.99mA            -60.99mA            -60.99mA
   2.60      -62.84mA            -62.84mA            -62.84mA
   2.70      -64.64mA            -64.64mA            -64.64mA
   2.80      -66.37mA            -66.37mA            -66.37mA
   2.90      -68.04mA            -68.04mA            -68.04mA
   3.00      -69.64mA            -69.64mA            -69.64mA
   3.10      -71.17mA            -71.17mA            -71.17mA
   3.20      -72.62mA            -72.62mA            -72.62mA
   3.30      -74.01mA            -74.01mA            -74.01mA
   3.40      -75.31mA            -75.31mA            -75.31mA
   3.50      -76.55mA            -76.55mA            -76.55mA
   3.60      -77.72mA            -77.72mA            -77.72mA
   3.70      -78.81mA            -78.81mA            -78.81mA
   3.80      -79.85mA            -79.85mA            -79.85mA
   3.90      -80.83mA            -80.83mA            -80.83mA
   4.00      -81.75mA            -81.75mA            -81.75mA
   4.10      -82.61mA            -82.61mA            -82.61mA
   4.20      -83.43mA            -83.43mA            -83.43mA
   4.30      -84.23mA            -84.23mA            -84.23mA
   4.40      -85.34mA            -85.34mA            -85.34mA
   4.50      -87.68mA            -87.68mA            -87.68mA
   4.60      -91.48mA            -91.48mA            -91.48mA
   4.70      -97.30mA            -97.30mA            -97.30mA
   5.00       -0.17A              -0.17A              -0.17A
   5.30       -0.28A              -0.28A              -0.28A
   5.60       -0.39A              -0.39A              -0.39A
   5.90       -0.50A              -0.50A              -0.50A
   6.20       -0.62A              -0.62A              -0.62A
   6.50       -0.73A              -0.73A              -0.73A
   6.80       -0.84A              -0.84A              -0.84A
   7.10       -0.96A              -0.96A              -0.96A
   0.00       0.000A              0.000A              0.000A
   7.20       -1.00A              -1.00A              -1.00A
|
[GND_clamp]
| voltage     I(typ)              I(min)              I(max)
|
  -3.60       -1.00A              -1.00A              -1.00A
  -3.50       -0.96A              -0.96A              -0.96A
  -3.40       -0.92A              -0.92A              -0.92A
  -3.30       -0.88A              -0.88A              -0.88A
  -3.20       -0.84A              -0.84A              -0.84A
  -3.10       -0.80A              -0.80A              -0.80A
  -3.00       -0.77A              -0.77A              -0.77A
  -2.90       -0.73A              -0.73A              -0.73A
  -2.80       -0.69A              -0.69A              -0.69A
  -2.70       -0.65A              -0.65A              -0.65A
  -2.60       -0.61A              -0.61A              -0.61A
  -2.50       -0.58A              -0.58A              -0.58A
  -2.40       -0.54A              -0.54A              -0.54A
  -2.30       -0.50A              -0.50A              -0.50A
  -2.20       -0.46A              -0.46A              -0.46A
  -2.10       -0.43A              -0.43A              -0.43A
  -2.00       -0.39A              -0.39A              -0.39A
  -1.90       -0.35A              -0.35A              -0.35A
  -1.80       -0.31A              -0.31A              -0.31A
  -1.70       -0.28A              -0.28A              -0.28A
  -1.60       -0.24A              -0.24A              -0.24A
  -1.50       -0.20A              -0.20A              -0.20A
  -1.40       -0.17A              -0.17A              -0.17A
  -1.30       -0.13A              -0.13A              -0.13A
  -1.20      -95.41mA            -95.41mA            -95.41mA
  -1.10      -62.02mA            -62.02mA            -62.02mA
  -1.00      -32.45mA            -32.45mA            -32.45mA
  -0.90      -13.17mA            -13.17mA            -13.17mA
  -0.80       -6.39mA             -6.39mA             -6.39mA
  -0.70       -2.78mA             -2.78mA             -2.78mA
  -0.60       -0.68mA             -0.68mA             -0.68mA
  -0.50      -69.97uA            -69.97uA            -69.97uA
  -0.40       -3.65uA             -3.65uA             -3.65uA
  -0.30       -0.11uA             -0.11uA             -0.11uA
  -0.20       -5.21nA             -5.21nA             -5.21nA
  -0.10       -2.44nA             -2.44nA             -2.44nA
   0.00       -2.13nA             -2.13nA             -2.13nA
   0.10       -1.89nA             -1.89nA             -1.89nA
   0.20       -1.68nA             -1.68nA             -1.68nA
   0.30       -1.49nA             -1.49nA             -1.49nA
   0.40       -1.32nA             -1.32nA             -1.32nA
   0.50       -1.17nA             -1.17nA             -1.17nA
   0.60       -1.02nA             -1.02nA             -1.02nA
   0.70       -0.89nA             -0.89nA             -0.89nA
   0.80       -0.78nA             -0.78nA             -0.78nA
   0.90       -0.67nA             -0.67nA             -0.67nA
   1.00       -0.57nA             -0.57nA             -0.57nA
   1.10       -0.48nA             -0.48nA             -0.48nA
   1.20       -0.40nA             -0.40nA             -0.40nA
   1.30       -0.33nA             -0.33nA             -0.33nA
   1.40       -0.26nA             -0.26nA             -0.26nA
   1.50       -0.20nA             -0.20nA             -0.20nA
   1.60       -0.14nA             -0.14nA             -0.14nA
   1.70      -92.03pA            -92.03pA            -92.03pA
   1.80      -44.85pA            -44.85pA            -44.85pA
   1.90       -1.42pA             -1.42pA             -1.42pA
   2.00       38.68pA             38.68pA             38.68pA
   2.10       75.84pA             75.84pA             75.84pA
   2.20        0.11nA              0.11nA              0.11nA
   2.30        0.14nA              0.14nA              0.14nA
   2.40        0.17nA              0.17nA              0.17nA
   2.50        0.20nA              0.20nA              0.20nA
   2.60        0.23nA              0.23nA              0.23nA
   2.70        0.25nA              0.25nA              0.25nA
   2.80        0.28nA              0.28nA              0.28nA
   2.90        0.30nA              0.30nA              0.30nA
   3.00        0.32nA              0.32nA              0.32nA
   3.10        0.34nA              0.34nA              0.34nA
   3.20        0.36nA              0.36nA              0.36nA
   3.30        0.37nA              0.37nA              0.37nA
   3.40        0.38nA              0.38nA              0.38nA
   3.50        0.40nA              0.40nA              0.40nA
   3.60        0.56nA              0.56nA              0.56nA
|
[POWER_clamp]
| voltage     I(typ)              I(min)              I(max)
|
  -3.60        3.00mA              3.00mA              3.00mA
  -3.50        2.89mA              2.89mA              2.89mA
  -3.40        2.78mA              2.78mA              2.78mA
  -3.30        2.67mA              2.67mA              2.67mA
  -3.20        2.56mA              2.56mA              2.56mA
  -3.10        2.46mA              2.46mA              2.46mA
  -3.00        2.35mA              2.35mA              2.35mA
  -2.90        2.24mA              2.24mA              2.24mA
  -2.80        2.14mA              2.14mA              2.14mA
  -2.70        2.03mA              2.03mA              2.03mA
  -2.60        1.93mA              1.93mA              1.93mA
  -2.50        1.82mA              1.82mA              1.82mA
  -2.40        1.72mA              1.72mA              1.72mA
  -2.30        1.62mA              1.62mA              1.62mA
  -2.20        1.53mA              1.53mA              1.53mA
  -2.10        1.43mA              1.43mA              1.43mA
  -2.00        1.34mA              1.34mA              1.34mA
  -1.90        1.25mA              1.25mA              1.25mA
  -1.80        1.15mA              1.15mA              1.15mA
  -1.70        1.06mA              1.06mA              1.06mA
  -1.60        0.97mA              0.97mA              0.97mA
  -1.50        0.88mA              0.88mA              0.88mA
  -1.40        0.78mA              0.78mA              0.78mA
  -1.30        0.69mA              0.69mA              0.69mA
  -1.20        0.60mA              0.60mA              0.60mA
  -1.10        0.51mA              0.51mA              0.51mA
  -1.00        0.42mA              0.42mA              0.42mA
  -0.90        0.33mA              0.33mA              0.33mA
  -0.80        0.25mA              0.25mA              0.25mA
  -0.70        0.16mA              0.16mA              0.16mA
  -0.60       85.73uA             85.73uA             85.73uA
  -0.50        0.68mA              0.68mA              0.68mA
  -0.40        0.25mA              0.25mA              0.25mA
  -0.30        8.01uA              8.01uA              8.01uA
  -0.20       68.87nA             68.87nA             68.87nA
  -0.10        3.39nA              3.39nA              3.39nA
   0.00        0.56nA              0.56nA              0.56nA
|
[Ramp]
| variable       typ                 min                 max
dV/dt_r          0.83/0.74n          0.83/0.74n          0.83/0.74n
dV/dt_f          1.11/0.79n          1.11/0.79n          1.11/0.79n
R_load = 25.00
|
[Rising Waveform]
R_fixture = 25.00
V_fixture = 0.000
V_fixture_min = 0.000
V_fixture_max = 0.000
| time           V(typ)              V(min)              V(max)
|
  0.000S         17.33nV             17.33nV             17.33nV
   0.20nS        17.84nV             17.84nV             17.84nV
   0.40nS        17.67nV             17.67nV             17.67nV
   0.60nS         1.29uV              1.29uV              1.29uV
   0.80nS        17.99uV             17.99uV             17.99uV
   1.00nS        53.27mV             53.27mV             53.27mV
   1.20nS         0.23V               0.23V               0.23V
   1.40nS         0.59V               0.59V               0.59V
   1.60nS         0.75V               0.75V               0.75V
   1.80nS         0.84V               0.84V               0.84V
   2.00nS         1.09V               1.09V               1.09V
   2.20nS         1.35V               1.35V               1.35V
   2.40nS         1.37V               1.37V               1.37V
   2.60nS         1.38V               1.38V               1.38V
   2.80nS         1.38V               1.38V               1.38V
   3.00nS         1.38V               1.38V               1.38V
   3.20nS         1.38V               1.38V               1.38V
   3.40nS         1.38V               1.38V               1.38V
   3.60nS         1.38V               1.38V               1.38V
   3.80nS         1.38V               1.38V               1.38V
   4.00nS         1.38V               1.38V               1.38V
   4.20nS         1.38V               1.38V               1.38V
   4.40nS         1.38V               1.38V               1.38V
   4.60nS         1.38V               1.38V               1.38V
   4.80nS         1.38V               1.38V               1.38V
   5.00nS         1.38V               1.38V               1.38V
   5.20nS         1.38V               1.38V               1.38V
   5.40nS         1.38V               1.38V               1.38V
   5.60nS         1.38V               1.38V               1.38V
   5.80nS         1.38V               1.38V               1.38V
   6.00nS         1.38V               1.38V               1.38V
   6.20nS         1.38V               1.38V               1.38V
   6.40nS         1.38V               1.38V               1.38V
   6.60nS         1.38V               1.38V               1.38V
   6.80nS         1.38V               1.38V               1.38V
   7.00nS         1.38V               1.38V               1.38V
   7.20nS         1.38V               1.38V               1.38V
   7.40nS         1.38V               1.38V               1.38V
   7.60nS         1.38V               1.38V               1.38V
   7.80nS         1.38V               1.38V               1.38V
   8.00nS         1.38V               1.38V               1.38V
   8.20nS         1.38V               1.38V               1.38V
   8.40nS         1.38V               1.38V               1.38V
   8.60nS         1.38V               1.38V               1.38V
   8.80nS         1.38V               1.38V               1.38V
   9.00nS         1.38V               1.38V               1.38V
   9.20nS         1.38V               1.38V               1.38V
   9.40nS         1.38V               1.38V               1.38V
   9.60nS         1.38V               1.38V               1.38V
   9.80nS         1.38V               1.38V               1.38V
  10.00nS         1.38V               1.38V               1.38V
|
[Rising Waveform]
R_fixture = 25.00
V_fixture = 3.60
V_fixture_min = 3.60
V_fixture_max = 3.60
| time           V(typ)              V(min)              V(max)
|
  0.000S          1.75V               1.75V               1.75V
   0.20nS         1.75V               1.75V               1.75V
   0.40nS         1.75V               1.75V               1.75V
   0.60nS         1.75V               1.75V               1.75V
   0.80nS         1.75V               1.75V               1.75V
   1.00nS         1.82V               1.82V               1.82V
   1.20nS         2.22V               2.22V               2.22V
   1.40nS         3.32V               3.32V               3.32V
   1.60nS         3.55V               3.55V               3.55V
   1.80nS         3.58V               3.58V               3.58V
   2.00nS         3.58V               3.58V               3.58V
   2.20nS         3.60V               3.60V               3.60V
   2.40nS         3.60V               3.60V               3.60V
   2.60nS         3.60V               3.60V               3.60V
   2.80nS         3.60V               3.60V               3.60V
   3.00nS         3.60V               3.60V               3.60V
   3.20nS         3.60V               3.60V               3.60V
   3.40nS         3.60V               3.60V               3.60V
   3.60nS         3.60V               3.60V               3.60V
   3.80nS         3.60V               3.60V               3.60V
   4.00nS         3.60V               3.60V               3.60V
   4.20nS         3.60V               3.60V               3.60V
   4.40nS         3.60V               3.60V               3.60V
   4.60nS         3.60V               3.60V               3.60V
   4.80nS         3.60V               3.60V               3.60V
   5.00nS         3.60V               3.60V               3.60V
   5.20nS         3.60V               3.60V               3.60V
   5.40nS         3.60V               3.60V               3.60V
   5.60nS         3.60V               3.60V               3.60V
   5.80nS         3.60V               3.60V               3.60V
   6.00nS         3.60V               3.60V               3.60V
   6.20nS         3.60V               3.60V               3.60V
   6.40nS         3.60V               3.60V               3.60V
   6.60nS         3.60V               3.60V               3.60V
   6.80nS         3.60V               3.60V               3.60V
   7.00nS         3.60V               3.60V               3.60V
   7.20nS         3.60V               3.60V               3.60V
   7.40nS         3.60V               3.60V               3.60V
   7.60nS         3.60V               3.60V               3.60V
   7.80nS         3.60V               3.60V               3.60V
   8.00nS         3.60V               3.60V               3.60V
   8.20nS         3.60V               3.60V               3.60V
   8.40nS         3.60V               3.60V               3.60V
   8.60nS         3.60V               3.60V               3.60V
   8.80nS         3.60V               3.60V               3.60V
   9.00nS         3.60V               3.60V               3.60V
   9.20nS         3.60V               3.60V               3.60V
   9.40nS         3.60V               3.60V               3.60V
   9.60nS         3.60V               3.60V               3.60V
   9.80nS         3.60V               3.60V               3.60V
  10.00nS         3.60V               3.60V               3.60V
|
[Falling Waveform]
R_fixture = 25.00
V_fixture = 3.60
V_fixture_min = 3.60
V_fixture_max = 3.60
| time           V(typ)              V(min)              V(max)
|
  0.000S          3.60V               3.60V               3.60V
   0.20nS         3.60V               3.60V               3.60V
   0.40nS         3.60V               3.60V               3.60V
   0.60nS         3.60V               3.60V               3.60V
   0.80nS         3.60V               3.60V               3.60V
   1.00nS         3.60V               3.60V               3.60V
   1.20nS         3.60V               3.60V               3.60V
   1.40nS         3.59V               3.59V               3.59V
   1.60nS         3.33V               3.33V               3.33V
   1.80nS         3.05V               3.05V               3.05V
   2.00nS         2.84V               2.84V               2.84V
   2.20nS         2.80V               2.80V               2.80V
   2.40nS         2.34V               2.34V               2.34V
   2.60nS         1.98V               1.98V               1.98V
   2.80nS         1.85V               1.85V               1.85V
   3.00nS         1.79V               1.79V               1.79V
   3.20nS         1.77V               1.77V               1.77V
   3.40nS         1.76V               1.76V               1.76V
   3.60nS         1.75V               1.75V               1.75V
   3.80nS         1.75V               1.75V               1.75V
   4.00nS         1.75V               1.75V               1.75V
   4.20nS         1.75V               1.75V               1.75V
   4.40nS         1.75V               1.75V               1.75V
   4.60nS         1.75V               1.75V               1.75V
   4.80nS         1.75V               1.75V               1.75V
   5.00nS         1.75V               1.75V               1.75V
   5.20nS         1.75V               1.75V               1.75V
   5.40nS         1.75V               1.75V               1.75V
   5.60nS         1.75V               1.75V               1.75V
   5.80nS         1.75V               1.75V               1.75V
   6.00nS         1.75V               1.75V               1.75V
   6.20nS         1.75V               1.75V               1.75V
   6.40nS         1.75V               1.75V               1.75V
   6.60nS         1.75V               1.75V               1.75V
   6.80nS         1.75V               1.75V               1.75V
   7.00nS         1.75V               1.75V               1.75V
   7.20nS         1.75V               1.75V               1.75V
   7.40nS         1.75V               1.75V               1.75V
   7.60nS         1.75V               1.75V               1.75V
   7.80nS         1.75V               1.75V               1.75V
   8.00nS         1.75V               1.75V               1.75V
   8.20nS         1.75V               1.75V               1.75V
   8.40nS         1.75V               1.75V               1.75V
   8.60nS         1.75V               1.75V               1.75V
   8.80nS         1.75V               1.75V               1.75V
   9.00nS         1.75V               1.75V               1.75V
   9.20nS         1.75V               1.75V               1.75V
   9.40nS         1.75V               1.75V               1.75V
   9.60nS         1.75V               1.75V               1.75V
   9.80nS         1.75V               1.75V               1.75V
  10.00nS         1.75V               1.75V               1.75V
|
[Falling Waveform]
R_fixture = 25.00
V_fixture = 0.000
V_fixture_min = 0.000
V_fixture_max = 0.000
| time           V(typ)              V(min)              V(max)
|
  0.000S          1.38V               1.38V               1.38V
   0.20nS         1.38V               1.38V               1.38V
   0.40nS         1.38V               1.38V               1.38V
   0.60nS         1.38V               1.38V               1.38V
   0.80nS         1.38V               1.38V               1.38V
   1.00nS         1.38V               1.38V               1.38V
   1.20nS         1.38V               1.38V               1.38V
   1.40nS         1.37V               1.37V               1.37V
   1.60nS         1.00V               1.00V               1.00V
   1.80nS         0.36V               0.36V               0.36V
   2.00nS        47.51mV             47.51mV             47.51mV
   2.20nS        17.40mV             17.40mV             17.40mV
   2.40nS        14.42mV             14.42mV             14.42mV
   2.60nS         2.09mV              2.09mV              2.09mV
   2.80nS         1.04mV              1.04mV              1.04mV
   3.00nS         0.57mV              0.57mV              0.57mV
   3.20nS         0.41mV              0.41mV              0.41mV
   3.40nS         0.28mV              0.28mV              0.28mV
   3.60nS         0.22mV              0.22mV              0.22mV
   3.80nS         0.19mV              0.19mV              0.19mV
   4.00nS         0.17mV              0.17mV              0.17mV
   4.20nS         0.15mV              0.15mV              0.15mV
   4.40nS         0.13mV              0.13mV              0.13mV
   4.60nS         0.12mV              0.12mV              0.12mV
   4.80nS         0.11mV              0.11mV              0.11mV
   5.00nS         0.10mV              0.10mV              0.10mV
   5.20nS        96.04uV             96.04uV             96.04uV
   5.40nS        87.15uV             87.15uV             87.15uV
   5.60nS        79.44uV             79.44uV             79.44uV
   5.80nS        75.28uV             75.28uV             75.28uV
   6.00nS        71.50uV             71.50uV             71.50uV
   6.20nS        66.97uV             66.97uV             66.97uV
   6.40nS        62.92uV             62.92uV             62.92uV
   6.60nS        59.19uV             59.19uV             59.19uV
   6.80nS        55.79uV             55.79uV             55.79uV
   7.00nS        52.75uV             52.75uV             52.75uV
   7.20nS        49.96uV             49.96uV             49.96uV
   7.40nS        46.77uV             46.77uV             46.77uV
   7.60nS        43.94uV             43.94uV             43.94uV
   7.80nS        42.43uV             42.43uV             42.43uV
   8.00nS        40.97uV             40.97uV             40.97uV
   8.20nS        39.12uV             39.12uV             39.12uV
   8.40nS        37.40uV             37.40uV             37.40uV
   8.60nS        35.80uV             35.80uV             35.80uV
   8.80nS        34.34uV             34.34uV             34.34uV
   9.00nS        33.00uV             33.00uV             33.00uV
   9.20nS        31.74uV             31.74uV             31.74uV
   9.40nS        30.80uV             30.80uV             30.80uV
   9.60nS        30.41uV             30.41uV             30.41uV
   9.80nS        30.76uV             30.76uV             30.76uV
  10.00nS        31.36uV             31.36uV             31.36uV
|
| End [Model] tristate_driver
|
| End [Component] OUTPUT DRIVER
|
[End]
 
 

Regards
Anshuli
 


- --------------050003000006070600020504-- |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 19 Feb 2003 08:25:43 +0530 From: Anshuli Goel Subject: Re: [IBIS-Users] ERROR in IBIS model Hi Experts You know what , the suggestions that you made are working out fine , the errors have disappeared. Tom ,thanx for sending me the corrected IBIS model. John . I generated the model at 50 ohms only. I was doing something so I had changed the value in control file. I was using s2ibis2 to generate the model so I did not bother to check each and every coulmn. I thought them to be ok. From now on I will be checking all the curves in file. Thanx a lot once again. Regards Anshuli |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 19 Feb 2003 08:26:45 +0530 From: Anshuli Goel Subject: Re: [IBIS-Users] ERROR in IBIS model Was it some kind of bug is s2ibis2 ??? Regards Anshuli Anshuli Goel wrote: > Hi Experts > > You know what , the suggestions that you made are working out fine , the > errors have disappeared. > > Tom ,thanx for sending me the corrected IBIS model. > > John . I generated the model at 50 ohms only. I was doing something so I > had changed the value in control file. > > I was using s2ibis2 to generate the model so I did not bother to check > each and every coulmn. I thought them to be ok. From now on I will be > checking all the curves in file. > > Thanx a lot once again. > > Regards > Anshuli |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 19 Feb 2003 13:47:53 -0800 From: garry.felker@conexant.com Subject: [IBIS-Users] C-comp question Sometimes I get a warning as follows: C_comp min value is not the smallest value listed or C_comp max value is not the largest value listed It does not always seem to be the case that the min value is the smallest C-comp value. What are your thoughts on this? Thanks Garry Felker |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 19 Feb 2003 15:16:26 -0800 From: "Muranyi, Arpad" Subject: RE: [IBIS-Users] C-comp question Garry, According to the IBIS specification, you need to put the smallest number in the min place, and the largest number in the max place. This is because the size of the number is not necessarily related to other min/max or fast/slow or best/worst conditions. Arpad Muranyi Intel Corporation ================================================================= - -----Original Message----- From: garry.felker@conexant.com [mailto:garry.felker@conexant.com] Sent: Wednesday, February 19, 2003 1:48 PM To: ibis-users@eda.org Subject: [IBIS-Users] C-comp question Sometimes I get a warning as follows: C_comp min value is not the smallest value listed or C_comp max value is not the largest value listed It does not always seem to be the case that the min value is the smallest C-comp value. What are your thoughts on this? Thanks Garry Felker |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 19 Feb 2003 16:13:55 -0800 From: "Muranyi, Arpad" Subject: RE: [IBIS-Users] C-comp question Garry, You can find it in Section 9, paragraphs 6-7, page 76 of the v.3.2 specification (in PDF file format). Regarding the TT parameters, the reason they may be out of order is because they need to hold values which correspond to the data in the typ/min/max columns of the clamp IV tables. (This is in spelled out in the "Usage Rules" section on p. 32). Arpad ================================================================= - -----Original Message----- From: garry.felker@conexant.com [mailto:garry.felker@conexant.com] Sent: Wednesday, February 19, 2003 3:55 PM To: Muranyi, Arpad Subject: RE: [IBIS-Users] C-comp question Hi Muranyi, I received further comments as follows... Garry Can you say which lines in the IBIS spec say the smallest value go to min and largest value go to max? I may have missed that line. On the other hand, I have an example in IBIS 3.2 spec clearly shows that smallest cap value does not necessarily go to min column (IBIS 3.2 pp 33, pdf version, the TTgnd and TTpower keyword). As I have understood (always), the min, typ, and max are corners, not absolute value comparison. Imagine if the data are full of negative numbers, would that turn everything upside down? Comments? Thanks Garry "Muranyi, Arpad" tel.com> cc: Sent by: Subject: RE: [IBIS-Users] C-comp question owner-ibis-users@ eda.org 02/19/2003 03:16 PM Garry, According to the IBIS specification, you need to put the smallest number in the min place, and the largest number in the max place. This is because the size of the number is not necessarily related to other min/max or fast/slow or best/worst conditions. Arpad Muranyi Intel Corporation ================================================================= - -----Original Message----- From: garry.felker@conexant.com [mailto:garry.felker@conexant.com] Sent: Wednesday, February 19, 2003 1:48 PM To: ibis-users@eda.org Subject: [IBIS-Users] C-comp question Sometimes I get a warning as follows: C_comp min value is not the smallest value listed or C_comp max value is not the largest value listed It does not always seem to be the case that the min value is the smallest C-comp value. What are your thoughts on this? Thanks Garry Felker |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 19 Feb 2003 16:37:57 -0800 From: "Muranyi, Arpad" Subject: RE: [IBIS-Users] C-comp question Garry, These observations are reasonable. We had long debates over this in the discussions when we wrote the spec. However, another way of looking at the problem is this: Is your slow case the worst case and the fast case the best case? Some may say yes, others may say no, and they are both correct... A receiver having a small C could give you the fastest edge rates at the receiver, but it could also allow the signal to overshoot, and consequently ring like crazy. A large C, on the other hand, could slow your edge rate down, but eliminate overshoot and ringing too. Which one do you consider best/worst or fast/slow case? If your ringing is so bad that it reenters the threshold region, this fast case could give you the longest timings, because you will have to wait for the ringing to settle. If you add resonance conditions, it may not even be the min or max capacitance value that overshoots and rings back the most, it could be anywhere in-between (or outside). Examples like this were the reason that we decided not to associate typ/min/max with any particular fast/slow, best/worst qualifiers. To cover all your bases, you should really simulate all possible combinations of the non-tracking (independent) parameters in the IBIS model. However, this may take forever, and not everyone may be interested to do it all the time. For these reasons (and perhaps others) the selection of these parameters is really best placed into the GUI of the tool. Arpad ================================================================== - -----Original Message----- From: garry.felker@conexant.com [mailto:garry.felker@conexant.com] Sent: Wednesday, February 19, 2003 4:18 PM To: Muranyi, Arpad Subject: RE: [IBIS-Users] C-comp question Further comments I received... Garry See IBIS 3.2 spec page 76/77. The exact wording is "The conservative approach to using IBIS data will associate large C_comp values with slow, weak models, and the small C_comp values with fast, strong models." The slow model is what we call min. So the large value goes to min column. The whole thing will not make sense until you think of these as corner, not absolute values. If you read pp 76, that is the intention. Indeed the recommended approach regarding C_comp is very conservative. It will only make the slower corner slower than what it really is and fast corner faster than what it really is. Comments? - ----- Forwarded by Garry L Felker/USA/Conexant on 02/19/2003 04:14 PM ----- |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Thu, 20 Feb 2003 17:02:16 +0200 From: Yoni Tzafrir Subject: [IBIS-Users] hspice connecting to an ibis component hi, can someone send me an hspice netlist connecting several buffers/pins defined in a component within the ibis file (and send the relevant ibis file as well)? Yonatan (Yoni) Tzafrir *Tel: (972) - 3 - 7552300 (T/L: 351) *Fax: (972) - 3 - 6177130 *Mobile: (972) -54- 459469 *E-mail: |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Fri, 28 Feb 2003 08:29:40 -0800 From: "Peters, Stephen" Subject: [IBIS-Users] Agenda, IBIS Open Forum Teleconference 3/7 This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. - ------_=_NextPart_001_01C2DF46.97ACBC60 Content-Type: text/plain IBIS Open Forum Meeting Agenda for 3/7/03 Bridge Number Reservation # Passcode 1-916-356-2663 4 9034377 All meetings are 8:00 AM to 9:55 AM Pacific Time. When you call into the meeting, ask for the IBIS Open Forum hosted by Stephen Peters and give the Reservation Number and Passcode. 8:00 Check-In, Intros, Announcements Peters - Intros of New IBIS Participants, Meeting Quorum Peters - Call for Patents Peters - Membership Update and Treasurers Report Peters - Review of Previous Meeting's Minutes (and ARs) Peters - Miscellany/Announcements All - Press & Web Page Updates Huq, All - New Models Available, Library Update Leventhal, All - Opens for New Issues All 8:15 Administrative and Project Discussions International/External Progress - IEC 62014-3 (ICEM) Integrated Circuits Electromagnetic Model Proposal (IEC 93/67/NP IBIS and EMC Simulation) Perrin/Peters - JEDEC Activity Report Green DATE2003 European IBIS Summit Meeting Report Lenski DAC2003 and DesignCon2003 East Meeting Planning Peters IBIS Version 4.0 Parser Funding/Status Peters IBIS Quality Committee Katz IBIS Model Review Committee Green New Administrative Issues All 8:45 Technical Discussion IBIS Connector and Futures Group Report Peters/Green BIRD74.2 - EMI Parameters de Burgh BIRD79 - Non-linear Buffer Impedance (extension to C_comp) Muranyi/Giacotto ibischk3 Status Ross - BUG71 - Monotonic Checking for Combined I-V Tables Haller - BUG74 - Missing Timing Test Load Warning Messages Haller - BUG78 - Clamp Current Double Counting Test Leventhal/Ross (not classified) New Technical Issues All 9:50 Wrap Up and Next Meetings Plans Peters 9:55 Sign Off - ------_=_NextPart_001_01C2DF46.97ACBC60 Content-Type: text/html Content-Transfer-Encoding: quoted-printable Message
       &nb= sp;           &nb= sp; =20 IBIS Open Forum Meeting Agenda
       &nb= sp;           &nb= sp;        =20 for 3/7/03
 
          &nb= sp;     =20 Bridge Number    Reservation #  =20 Passcode
          =       =20 1-916-356-2663       =20 4          = 9034377
 
All meetings are 8:00 AM to = 9:55 AM Pacific=20 Time.  When you call into the
meeting, ask for the IBIS Open = Forum=20 hosted by Stephen Peters and give the
Reservation Number and=20 Passcode.
 
8:00 Check-In, Intros,=20 Announcements          = ;            = ;  =20 Peters
 
     - = Intros of New=20 IBIS Participants, Meeting Quorum      =20 Peters
     - Call for=20 Patents           = ;            = ;            = ;  =20 Peters
     - Membership Update and Treasurers=20 Report           =    =20 Peters
     - Review of Previous Meeting's = Minutes (and=20 ARs)       =20 Peters
     -=20 Miscellany/Announcements        =             =          =20 All
     - Press & Web Page=20 Updates           = ;            = ;      =20 Huq, All
     - New Models Available, Library=20 Update           =       =20 Leventhal, All
     - Opens for New=20 Issues           =             =           =20 All
 
8:15 Administrative and = Project=20 Discussions
 
    =20 International/External Progress
     - IEC = 62014-3 (ICEM)=20 Integrated Circuits Electromagnetic =
      =20 Model Proposal (IEC 93/67/NP IBIS and EMC Simulation)=20 Perrin/Peters
     - JEDEC Activity=20 Report           =             =          =20 Green
 
     = DATE2003 European=20 IBIS Summit Meeting=20 Report           = =20 Lenski
 
     = DAC2003 and=20 DesignCon2003 East Meeting=20 Planning         = Peters
 
     IBIS = Version 4.0=20 Parser=20 Funding/Status         &nbs= p;       =20 Peters
 
     IBIS = Quality=20 Committee          &nb= sp;           &nb= sp;          =20 Katz
 
     IBIS = Model Review=20 Committee          &nb= sp;           &nb= sp;     =20 Green
 
     New = Administrative=20 Issues           =             =        =20 All
 
8:45 Technical = Discussion
 
     IBIS = Connector and=20 Futures Group=20 Report           =      =20 Peters/Green
 
     = BIRD74.2 - EMI=20 Parameters          &n= bsp;           &n= bsp;       =20 de Burgh
 
     = BIRD79 -=20 Non-linear Buffer Impedance (extension=20 to
           =   =20 C_comp)           = ;            = ;            = ;    =20 Muranyi/Giacotto
 

     ibischk3=20 Status           =             =             =      =20 Ross
     - BUG71 - Monotonic Checking for = Combined I-V=20 Tables    Haller
     - BUG74 - = Missing=20 Timing Test Load Warning Messages    =20 Haller
     - BUG78 - Clamp Current Double = Counting=20 Test           =20 Leventhal/Ross
         =      =20 (not classified)
 
     New Technical=20 Issues           =             =             = =20 All
 
9:50 Wrap Up and Next Meetings=20 Plans           &= nbsp;           &= nbsp;=20 Peters
 
9:55 Sign=20 Off
- ------_=_NextPart_001_01C2DF46.97ACBC60-- |------------------------------------------------------------------ |For help or to subscribe/unsubscribe, email majordomo@eda.org |with just the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or email a written request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993 ------------------------------ End of ibis-users V1 #18 ************************