IBIS_R

A simple resistor. The resistance value is calculated:

R = Rval * Scale

p positive resistor terminal n negative resistor terminal Rval Resistance value 1.0 Scale Scaling factor for calculating resistance value 1.0 SPICE X1 clk_n clkp IBIS_R Rval=100 VAMS IBIS_R #(.Rval(100)) R1 (clk_n, clk_p); IBIS_VCR

A voltage-controlled resistor. The resistance value is calculated:

R = V(ps,ns) * Scale

The sense terminals ps and ns draw no current.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Scale Scaling factor for calculating resistance value 1.0 SPICE X1 clkn clkp vcrp vcrn IBIS_VCR Scale=50 VAMS IBIS_VCR #(.Scale(50)) VCR1 (clkn, clk_p, vcrp, vcrn); IBIS_CCR

A current-controlled resistor. The resistance value is calculated:

R = I(ps,ns) * Scale

The sense terminals ps and ns behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control current ns negative sense terminal for control current Scale Scaling factor for calculating resistance value 1.0 SPICE X1 clkn clkp ccrp ccrn IBIS_CCR Scale=200 VAMS IBIS_CCR #(.Scale(200)) CCR1 (clkn, clk_p, ccrp, ccrn); IBIS_C

A simple capacitor. The capacitance value is calculated:

C = Cval * Scale

p positive capacitor terminal n negative capacitor terminal Cval Capacitance value 1.0 V0 Voltage value at time = zero 0.0 Scale Scaling factor for calculating capacitance value 1.0 SPICE X1 clk_n clkp IBIS_C Cval=4.5 Scale=1e-12 VAMS IBIS_C #(.Cval(4.5),.Scale(1e-12))) C1 (clk_n, clk_p); IBIS_VCC

A voltage-controlled capacitor. The capacitance value is calculated:

C = V(ps,ns) * Scale

The sense terminals ps and ns draw no current. This is a charge-conserving model. When the capacitance value changes, a displacement current is produced from p to n to adjust the stored charge so that the total charge level observes the rule:

Q = C * V(p,n)

p positive capacitor terminal n negative capacitor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage V0 Voltage at time = zero 0.0 Scale Scaling factor for calculating capacitance value 1.0 SPICE X1 clkn clkp vccp vccn IBIS_VCC Scale=1e-12 VAMS IBIS_VCC #(.Scale(1e-12)) VCC1 (clkn, clk_p, vccp, vccn); IBIS_CCC

A current-controlled capacitor. The capacitance value is calculated:

C = I(ps,ns) * Scale

The sense terminals ps and ns behave as a short circuit.

This is a charge-conserving model. When the capacitance value changes, a displacement current is produced from p to n to adjust the stored charge so that the total charge level observes the rule:

Q = C * V(p,n)

p positive capacitor terminal n negative capacitor terminal ps positive sense terminal for control current ns negative sense terminal for control current V0 Capacitor voltage at time zero 0.0 Scale Scaling factor for calculating capacitance value 1.0 SPICE X1 clkn clkp cccp cccn IBIS_CCC Scale=5e-12 VAMS IBIS_CCC #(.Scale(5e-12)) CCC1 (clkn, clk_p, cccp, cccn); IBIS_L

A simple inductor. The inductance value is calculated:

L = Lval * Scale

p positive inductor terminal n negative inductor terminal Lval Inductance value 1.0 I0 Inductance value 0.0 Scale Scaling factor for calculating inductance value 1.0 SPICE X1 clk_n clkp IBIS_L Lval=0.8 Scale=1e-9 VAMS IBIS_L #(.Lval(0.8),.Scale(1e-9)) L1 (clk_n, clk_p); IBIS_VCL

A voltage-controlled inductor. The inductance value is calculated:

L = V(ps,ns) * Scale

The sense terminals ps and ns draw no current. This is a flux-conserving model. When the inductance value changes, the voltage-current relationship adjusts so that magnetic flux is conserved in the equation:

B = L * I(p,n)

p positive inductor terminal n negative inductor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage I0 Inductor current at time zero 0.0 Scale Scaling factor for calculating inductance value 1.0 SPICE X1 clkn clkp vclp vcln IBIS_VCL Scale=0.5e-9 VAMS IBIS_VCL #(.Scale(0.5e-9)) VCL1 (clkn, clk_p, vclp, vcln); IBIS_CCL

A current-controlled inductor. The inductance value is calculated:

L = I(ps,ns) * Scale

The sense terminals ps and ns draw no current.

This is a flux-conserving model. When the inductance value changes, the voltage-current relationship adjusts so that magnetic flux is conserved in the equation:

B = L * I(p,n)

p positive inductor terminal n negative inductor terminal ps positive sense terminal for control current ns negative sense terminal for control current I0 Inductor current at time zero 0.0 Scale Scaling factor for calculating inductance value 1.0 SPICE X1 clkn clkp cclp ccln IBIS_CCL Scale=4e-9 VAMS IBIS_CCL #(.Scale(4e-9)) CCL1 (clkn, clk_p, cclp, ccln); IBIS_K

A mutually-coupled inductor pair. The inductance values are calculated:

L_1 = Lval_1 * Scale

L_2 = Lval_2 * Scale

p1 positive inductor 1 terminal n1 negative inductor 1 terminal p2 positive inductor 2 terminal n2 negative inductor 2 terminal Lval_1 Inductance value for inductor 1 1.0 Lval_2 Inductance value for inductor 2 1.0 Kval Mutual coupling value 0.0 I0_1 Inductance value at time zero for inductor 1 0.0 I0_2 Inductance value at time zero for inductor 2 0.0 Scale Scaling factor for calculating both inductance values 1.0 SPICE

X1 pad_n pad_p pin_n pin_p IBIS_K \
+ Lval_1=0.8 Lval_2=0.5 Kval=0.15 Scale=1e-9

VAMS

IBIS_K
#(.Lval_1(0.8),.Lval_2(0.5),.Kval(0.15),.Scale(1e-9)) \
K1 (pad_n, pad_p, pin_n, pin_p);

IBIS_V

A DC voltage source. Output voltage is calculated:

V(p,n) = Vdc * Scale

p positive voltage source terminal n negative voltage source terminal Vdc DC voltage value 1.0 Scale Scaling factor for calculating inductance value 1.0 SPICE X1 vddq vss IBIS_V Vdc=3.3 VAMS IBIS_V #(.Vdc(3.3)) V1 (vddq, vss); IBIS_VCVS

A voltage-controlled voltage source. The output voltage value is calculated:

V(p,n) = V(ps,ns) * Scale

The sense terminals ps and ns draw no current.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Scale Scaling factor for calculating output voltage 1.0 SPICE X1 clkn clkp vcrp vcrn IBIS_VCVS Scale=0.5 VAMS IBIS_VCVS #(.Scale(0.5)) VCVS1 (clkn, clk_p, vcrp, vcrn); IBIS_CCVS

A current-controlled voltage source. The output voltage value is calculated:

V(p,n) = I(ps,ns) * Scale

The sense terminals ps and ns behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control current ns negative sense terminal for control current Scale Scaling factor for calculating output voltage 1.0 SPICE X1 buf2in vss pad padi IBIS_CCVS Scale=100 VAMS IBIS_CCVS #(.Scale(100)) CCVS1 (buf2in, vss, pad, padi); IBIS_VCVS_DELAY

A voltage-controlled voltage source with delay. All changes at the sense terminals affect the output later in time, using the specified delay. The voltage value is calculated:

V(p,n) = V(ps,ns) * Scale, delayed by TD

The sense terminals ps and ns draw no current.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage TD Time delay from control voltage change to output change 0.0 Scale Scaling factor for calculating output voltage 1.0 SPICE X1 buf2in vss pad padi IBIS_VCVS_DELAY TD=200p VAMS

IBIS_VCVS_DELAY #(.TD(200e-12)) \
VCVS1 (buf2in, vss, pad, padi);

IBIS_CCVS_DELAY

A current-controlled voltage source with delay. All changes at the sense terminals affect the output later, using the specified delay in seconds. The voltage value is calculated:

V(p,n) = I(ps,ns) * Scale

The sense terminals ps and ns behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control current ns negative sense terminal for control current TD Time delay from control current change to output change 0.0 Scale Scaling factor for calculating voltage 1.0 SPICE X1 buf2in vss pad padi IBIS_CCVS_DELAY Scale=100 TD=200p VAMS

IBIS_CCVS_DELAY #(.Scale(100),.TD(200e-12)) \
CCVS1 (buf2in, vss, pad, padi);

IBIS_VCVS_MIN

A voltage-controlled voltage source for taking the lesser of two control input voltages. The output voltage value is calculated:

V(p,n) = min( V(ps1,ns1) V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive resistor terminal n negative resistor terminal ps1 positive sense terminal for control voltage 1 ns1 negative sense terminal for control voltage 1 ps2 positive sense terminal for control voltage 2 ns2 negative sense terminal for control voltage 2 Scale Scaling factor for calculating output voltage 1.0 SPICE X1 bufctl vss ctlmain vss boost vss IBIS_VCVS_MIN VAMS

IBIS_VCVS_MIN MIN1 (bufctl, vss, ctlmain, vss, boost,
vss);

IBIS_CCVS_MIN

A voltage-controlled voltage source for taking the lesser of two control input voltages. The output voltage value is calculated:

V(p,n) = min( V(ps1,ns1) V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps1 positive sense terminal for control current 1 ns1 negative sense terminal for control current 1 ps2 positive sense terminal for control current 2 ns2 negative sense terminal for control current 2 Scale Scaling factor for calculating output voltage 1.0 SPICE X1 bufctl vss ctlmain ctlmaini boost boosti IBIS_CCVS_MIN VAMS

IBIS_CCVS_MIN MIN1 (bufctl, vss, ctlmain, vss, boost,
vss);

IBIS_VCVS_MAX

A voltage-controlled voltage source for taking the greater of two control input voltages. The output voltage value is calculated:

V(p,n) = min( V(ps1,ns1) V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

IBIS_VCVS_MAX MAX1 (bufctl, vss, ctlmain, vss, boost,
vss);

IBIS_CCVS_MAX

A current-controlled voltage source for taking the greater of two input currents. The output voltage value is calculated:

V(p,n) = max( I(ps1,ns1) I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive voltage source terminal n negative voltage source terminal ps1 positive sense terminal for control current 1 ns1 negative sense terminal for control current 1 ps2 positive sense terminal for control current 2 ns2 negative sense terminal for control current 2 Scale Scaling factor for calculating output voltage 1.0 IBIS_VCVS_ABS

A voltage-controlled voltage source for taking the absolute value of the control voltage. The output voltage value is always positive, and is calculated:

V(p,n) = abs( V(ps,ns) ) * Scale

The sense terminals ps and ns draw no current.

A current-controlled voltage source for taking the absolute value of the control current. The output voltage value is always positive, and is calculated:

V(p,n) = abs( I(ps,ns) ) * Scale

The sense terminals ps and ns behave as a short circuit.

A voltage-controlled voltage source for taking the sum of two control input voltages. The output voltage value is calculated:

V(p,n) = ( V(ps1,ns1) + V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive voltage source terminal n negative voltage source terminal ps1 positive sense terminal for control voltage 1 ns1 negative sense terminal for control voltage 1 ps2 positive sense terminal for control voltage 2 ns2 negative sense terminal for control voltage 2 Scale Scaling factor for calculating output voltage 1.0 IBIS_CCVS_SUM

A current-controlled voltage source for taking the sum of two control input voltages. The output voltage value is calculated:

V(p,n) = ( I(ps1,ns1) + I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

A voltage-controlled voltage source for taking the product of two control input voltages. The output voltage value is calculated:

V(p,n) = ( V(ps1,ns1) * V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

A current-controlled voltage source for taking the product of two control input currents. The output voltage value is calculated:

V(p,n) = ( I(ps1,ns1) * I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

A voltage-controlled voltage source for taking the ratio of two control input voltages. The output voltage value is calculated:

V(p,n) = ( V(ps1,ns1) / V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

A current-controlled voltage source for taking the ratio of two control input currents. The output voltage value is calculated:

V(p,n) = ( I(ps1,ns1) / I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

A voltage-controlled voltage source with non-linear relationship between control voltage and output voltage, described using a piecewise-linear table.

Each voltage value in the array of X values is paired with a Y array voltage value. The Length parameter must be set to the number of elements in these arrays.

The input control voltage determines a position in the X array, and the corersponding Y array value is used for the output voltage. Linear interpolation is used for control voltage values that do not fall exactly on a particular X array value. Points outside the X array range are extrapolated using the slope of the nearest two points of the PWL data.

The sense terminals ps and ns draw no current.

p positive voltage source terminal n negative voltage source terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Scale Scaling factor for calculating output voltage 1.0 Length Number of elements in the X and Y arrays 4 X[1:Length] Array of X axis values (input control voltage) {-5.00 0.00 5.00 10.00} Y[1:Length] Array of Y axis values (output voltage) {-0.10 0.00 0.10 0.10} IBIS_CCVS_PWL

A current-controlled voltage source with non-linear relationship between control current and output voltage, described using a piecewise-linear table.

Each current value in the array of X values is paired with a Y array voltage value. The Length parameter must be set to the number of elements in these arrays.

The input control current determines a position in the X array, and the corersponding Y array value is used for the output voltage. Linear interpolation is used for control current values that do not fall exactly on a particular X array value. Points outside the X array range are extrapolated using the slope of the nearest two points of the PWL data.

The sense terminals ps and ns behave as a short circuit.

p positive voltage source terminal n negative voltage source terminal ps positive sense terminal for control current ns negative sense terminal for control current Scale Scaling factor for calculating output voltage 1.0 Length Number of elements in the X and Y arrays 4 X[1:Length] Array of X axis values (input control current) {-5.00 0.00 5.00 10.00} Y[1:Length] Array of Y axis values (output voltage) {-0.10 0.00 0.10 0.10} IBIS_TCVS_PWL

A time-controlled voltage source with non-linear relationship between time and output voltage, described using a piecewise-linear table.

Each time value in the array of X values is paired with a Y array votage value. The Length parameter must be set to the number of elements in these arrays.

The arrays describe the output voltage waveform. The first X value in the array gives the time at wich the waveform begins in the simulation. Linear interpolation is used for time values that do not fall exactly on a particular X array value. Points outside the time range are extrapolated horizontally, ie., the Y value of nearest point is used.

p positive voltage source terminal n negative voltage source terminal Scale Scaling factor for calculating output voltage 1.0 Length Number of elements in the X and Y arrays 4 X[1:Length] Array of X axis values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} Y[1:Length] Array of Y axis values (output voltage) {0.00 0.10 0.90 1.00} IBIS_VECVS_PWL

A voltage event-controlled voltage source producing time-based piecewise-linear voltage waveforms in response to trigger events. The control voltage triggers separate rising and falling PWL waveforms to effect transitions between high and low states.

Each time value in the XR array is paired with a voltage value in the YR array to describe a rising edge waveform. Likewise for XF and YF arrays, which describe a falling edge waveform. The Length_R and Length_F parameters must be set to the number of elements in the *R and *F arrays, respectively.

When the control voltage rises above Vth_R the rising edge waveform is output. Voltage then remains at the level of the last point in the rising waveform table until a falling edge transition is triggerd. When the control voltage falls below Vth_F a falling edge waveform is triggered, holding at the last voltage until the next rising edge.

In DC analysis the first point of the falling edge waveform is output if the control voltage is above Vth_R, and the first point of the rising edge waveform is output if the control voltage is below Vth_F. If Vt_R is less than or equal to Vth_F and the control voltage lies on or between those values the high state voltage is output. If Vth_R is greater than Vth_F and the control voltage lies on or between those values, the average of the high and low state voltages is output.

p positive voltage source terminal n negative voltage source terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Vth_R Threshold voltage to trigger a rising edge event 0.0 Vth_F Threshold voltage to trigger a falling edge event 0.0 Scale Scaling factor for calculating output voltage 1.0 Length_R Number of elements in the XR and YR arrays 4 Length_F Number of elements in the XF and YF arrays 4 XR[1:Length_R] Array of rising edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YR[1:Length_R] Array of rising edge Y values (voltage) {0.00 0.10 0.90 1.00} XF[1:Length_F] Array of falling edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YF[1:Length_F] Array of falling edge Y values (voltage) {1.00 0.90 0.10 0.00} IBIS_CECVS_PWL

A current event-controlled voltage source producing time-based piecewise-linear voltage waveforms in response to trigger events. The control current triggers separate rising and falling PWL waveforms to effect transitions between high and low states.

When the control current rises above Ith_R the rising edge waveform is output. Voltage then remains at the level of the last point in the rising waveform table until a falling edge transition is triggerd. When the control current falls below Ith_F a falling edge waveform is triggered, holding at the last voltage until the next rising edge.

In DC analysis the first point of the falling edge waveform is output if the control current is above Ith_R, and the first point of the rising edge waveform is output if the control current is below Ith_F. If It_R is less than or equal to Ith_F and the control current lies on or between those values the high state voltage is output. If Ith_R is greater than Ith_F and the control current lies on or between those values, the average of the high and low state voltages is output.

p positive voltage source terminal n negative voltage source terminal ps positive sense terminal for control current ns negative sense terminal for control current Ith_R Threshold current to trigger a rising edge event 0.0 Ith_F Threshold current to trigger a falling edge event 0.0 Scale Scaling factor for calculating output voltage 1.0 Length_R Number of elements in the XR and YR arrays 4 Length_F Number of elements in the XF and YF arrays 4 XR[1:Length_R] Array of rising edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YR[1:Length_R] Array of rising edge Y values (current) {0.00 0.10 0.90 1.00} XF[1:Length_F] Array of falling edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YF[1:Length_F] Array of falling edge Y values (current) {1.00 0.90 0.10 0.00} IBIS_I

A DC current source. Output current is calculated:

I(p,n) = Idc * Scale

p positive current source terminal n negative current source terminal Idc DC current value 1.0 Scale Scaling factor for calculating output voltage 1.0 SPICE X1 pada vss IBIS_I Idc=0.025 VAMS IBIS_I #(.Idc(0.025)) I1 (pada, vss); IBIS_VCCS

A voltage-controlled current source. The output current value is calculated:

I(p,n) = I(ps,ns) * Scale

The sense terminals ps and ns draw no current.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Scale Scaling factor for calculating output current 1.0 SPICE X1 pupwr pupwra vcp vss IBIS_VCCS Scale=0.05 VAMS IBIS_VCCS #(.Scale(0.05)) VCCS1 (pupwr, pupwr, vcp, vss); IBIS_CCCS

A current-controlled current source. The output current value is calculated:

I(p,n) = I(ps,ns) * Scale

The sense terminals ps and ns behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control current ns negative sense terminal for control current Scale Scaling factor for calculating output current 1.0 SPICE X1 buf2in vss pad padi IBIS_CCVS Scale=0.1 VAMS IBIS_CCVS #(.Scale(0.1)) CCVS1 (buf2in, vss, pad, padi); IBIS_VCCS_DELAY

A voltage-controlled current source with delay. All changes at the sense terminals affect the output later in time, using the specified delay. The output current value is calculated:

I(p,n) = V(ps,ns) * Scale, delayed by TD

The sense terminals ps and ns draw no current.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage TD Time delay from control voltage change to output change 0.0 Scale Scaling factor for calculating output current 1.0 SPICE X1 buf2in vss pad padi IBIS_VCCS_DELAY TD=200p VAMS

IBIS_VCCS_DELAY #(.TD(200e-12)) \
VCCS1 (buf2in, vss, pad, padi);

IBIS_CCCS_DELAY

A current-controlled current source with delay. All changes at the sense terminals affect the output later, using the specified delay in seconds. The current value is calculated:

I(p,n) = I(ps,ns) * Scale

The sense terminals ps and ns behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps positive sense terminal for control current ns negative sense terminal for control current TD Time delay from control current change to output change 0.0 Scale Scaling factor for calculating current 1.0 SPICE X1 buf2in vss pad padi IBIS_CCVS_DELAY Scale=100 TD=200p VAMS

IBIS_CCVS_DELAY #(.Scale(100),.TD(200e-12)) \
CCVS1 (buf2in, vss, pad, padi);

IBIS_VCCS_MIN

A voltage-controlled current source for taking the lesser of two control input voltages. The output current value is calculated:

I(p,n) = min( V(ps1,ns1) V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive resistor terminal n negative resistor terminal ps1 positive sense terminal for control voltage 1 ns1 negative sense terminal for control voltage 1 ps2 positive sense terminal for control voltage 2 ns2 negative sense terminal for control voltage 2 Scale Scaling factor for calculating output current 1.0 SPICE X1 bufctl vss ctlmain vss boost vss IBIS_VCCS_MIN VAMS

IBIS_VCCS_MIN MIN1 (bufctl, vss, ctlmain, vss, boost,
vss);

IBIS_CCCS_MIN

A voltage-controlled current source for taking the lesser of two control input voltages. The output current value is calculated:

I(p,n) = min( V(ps1,ns1) V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

p positive resistor terminal n negative resistor terminal ps1 positive sense terminal for control current 1 ns1 negative sense terminal for control current 1 ps2 positive sense terminal for control current 2 ns2 negative sense terminal for control current 2 Scale Scaling factor for calculating output current 1.0 SPICE X1 bufctl vss ctlmain ctlmaini boost boosti IBIS_CCVS_MIN VAMS

IBIS_CCVS_MIN MIN1 (bufctl, vss, ctlmain, vss, boost,
vss);

IBIS_VCCS_MAX

A voltage-controlled current source for taking the greater of two control input voltages. The output current value is calculated:

I(p,n) = min( V(ps1,ns1) V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive resistor terminal n negative resistor terminal ps1 positive sense terminal for control voltage 1 ns1 negative sense terminal for control voltage 1 ps2 positive sense terminal for control voltage 2 ns2 negative sense terminal for control voltage 2 Scale Scaling factor for calculating output current 1.0 SPICE X1 bufctl vss ctlmain vss boost vss IBIS_VCCS_MAX VAMS

IBIS_VCCS_MAX MAX1 (bufctl, vss, ctlmain, vss, boost,
vss);

IBIS_CCCS_MAX

A current-controlled current source for taking the greater of two input currents. The output current value is calculated:

V(p,n) = max( I(ps1,ns1) I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive current source terminal n negative current source terminal ps1 positive sense terminal for control current 1 ns1 negative sense terminal for control current 1 ps2 positive sense terminal for control current 2 ns2 negative sense terminal for control current 2 Scale Scaling factor for calculating output current 1.0 IBIS_VCCS_ABS

A voltage-controlled current source for taking the absolute value of the control voltage. The output current value is always positive, and is calculated:

V(p,n) = abs( V(ps,ns) ) * Scale

The sense terminals ps and ns draw no current.

A current-controlled current source for taking the absolute value of the control current. The output current value is always positive, and is calculated:

V(p,n) = abs( I(ps,ns) ) * Scale

The sense terminals ps and ns behave as a short circuit.

A voltage-controlled current source for taking the sum of two control input voltages. The output current value is calculated:

V(p,n) = ( V(ps1,ns1) + V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

p positive current source terminal n negative current source terminal ps1 positive sense terminal for control voltage 1 ns1 negative sense terminal for control voltage 1 ps2 positive sense terminal for control voltage 2 ns2 negative sense terminal for control voltage 2 Scale Scaling factor for calculating output current 1.0 IBIS_CCCS_SUM

A current-controlled current source for taking the sum of two control input voltages. The output current value is calculated:

V(p,n) = ( I(ps1,ns1) + I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

A voltage-controlled current source for taking the product of two control input voltages. The output current value is calculated:

V(p,n) = ( V(ps1,ns1) * V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

A current-controlled current source for taking the product of two control input currents. The output current value is calculated:

V(p,n) = ( I(ps1,ns1) * I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

A voltage-controlled current source for taking the ratio of two control input voltages. The output current value is calculated:

V(p,n) = ( V(ps1,ns1) / V(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 draw no current. The sense terminals ps2 and ns2 draw no current.

A current-controlled current source for taking the ratio of two control input currents. The output current value is calculated:

V(p,n) = ( I(ps1,ns1) / I(ps2,ns2) ) * Scale

The sense terminals ps1 and ns1 behave as a short circuit. The sense terminals ps2 and ns2 behave as a short circuit.

A voltage-controlled current source with non-linear relationship between control voltage and output current, described using a piecewise-linear table.

Each voltage value in the array of X values is paired with a Y array current value. The Length parameter must be set to the number of elements in these arrays.

The input control voltage determines a position in the X array, and the corersponding Y array value is used for the output current. Linear interpolation is used for control voltage values that do not fall exactly on a particular X array value. Points outside the X array range are extrapolated using the slope of the nearest two points of the PWL data.

The sense terminals ps and ns draw no current.

p positive current source terminal n negative current source terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Scale Scaling factor for calculating output current 1.0 Length Number of elements in the X and Y arrays 4 X[1:Length] Array of X axis values (input control voltage) {-5.00 0.00 5.00 10.00} Y[1:Length] Array of Y axis values (output current) {-0.10 0.00 0.10 0.10} IBIS_CCCS_PWL

A current-controlled current source with non-linear relationship between control current and output current, described using a piecewise-linear table.

Each current value in the array of X values is paired with a Y array current value. The Length parameter must be set to the number of elements in these arrays.

The input control current determines a position in the X array, and the corersponding Y array value is used for the output current. Linear interpolation is used for control current values that do not fall exactly on a particular X array value. Points outside the X array range are extrapolated using the slope of the nearest two points of the PWL data.

The sense terminals ps and ns behave as a short circuit.

p positive current source terminal n negative current source terminal ps positive sense terminal for control current ns negative sense terminal for control current Scale Scaling factor for calculating output current 1.0 Length Number of elements in the X and Y arrays 4 X[1:Length] Array of X axis values (input control current) {-5.00 0.00 5.00 10.00} Y[1:Length] Array of Y axis values (output current) {-0.10 0.00 0.10 0.10} IBIS_TCCS_PWL

A time-controlled current source with non-linear relationship between time and output current, described using a piecewise-linear table.

Each time value in the array of X values is paired with a Y array votage value. The Length parameter must be set to the number of elements in these arrays.

The arrays describe the output current waveform. The first X value in the array gives the time at wich the waveform begins in the simulation. Linear interpolation is used for time values that do not fall exactly on a particular X array value. Points outside the time range are extrapolated horizontally, ie., the Y value of nearest point is used.

p positive current source terminal n negative current source terminal Scale Scaling factor for calculating output current 1.0 Length Number of elements in the X and Y arrays 4 X[1:Length] Array of X axis values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} Y[1:Length] Array of Y axis values (output current) {0.00 0.10 0.90 1.00} IBIS_VECCS_PWL

A voltage event-controlled current source producing time-based piecewise-linear current waveforms in response to trigger events. The control voltage triggers separate rising and falling PWL waveforms to effect transitions between high and low states.

Each time value in the XR array is paired with a current value in the YR array to describe a rising edge waveform. Likewise for XF and YF arrays, which describe a falling edge waveform. The Length_R and Length_F parameters must be set to the number of elements in the *R and *F arrays, respectively.

In DC analysis the first point of the falling edge waveform is output if the control voltage is above Vth_R, and the first point of the rising edge waveform is output if the control voltage is below Vth_F. If Vt_R is less than or equal to Vth_F and the control voltage lies on or between those values the high state current is output. If Vth_R is greater than Vth_F and the control voltage lies on or between those values, the average of the high and low state currents is output.

p positive current source terminal n negative current source terminal ps positive sense terminal for control voltage ns negative sense terminal for control voltage Vth_R Threshold voltage to trigger a rising edge event 0.0 Vth_F Threshold voltage to trigger a falling edge event 0.0 Scale Scaling factor for calculating output current 1.0 Length_R Number of elements in the XR and YR arrays 4 Length_F Number of elements in the XF and YF arrays 4 XR[1:Length_R] Array of rising edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YR[1:Length_R] Array of rising edge Y values (current) {0.00 0.10 0.90 1.00} XF[1:Length_F] Array of falling edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YF[1:Length_F] Array of falling edge Y values (current) {1.00 0.90 0.10 0.00} IBIS_CECCS_PWL

A current event-controlled current source producing time-based piecewise-linear current waveforms in response to trigger events. The control current triggers separate rising and falling PWL waveforms to effect transitions between high and low states.

In DC analysis the first point of the falling edge waveform is output if the control current is above Ith_R, and the first point of the rising edge waveform is output if the control current is below Ith_F. If It_R is less than or equal to Ith_F and the control current lies on or between those values the high state current is output. If Ith_R is greater than Ith_F and the control current lies on or between those values, the average of the high and low state currents is output.

p positive current source terminal n negative current source terminal ps positive sense terminal for control current ns negative sense terminal for control current Ith_R Threshold current to trigger a rising edge event 0.0 Ith_F Threshold current to trigger a falling edge event 0.0 Scale Scaling factor for calculating output current 1.0 Length_R Number of elements in the XR and YR arrays 4 Length_F Number of elements in the XF and YF arrays 4 XR[1:Length_R] Array of rising edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YR[1:Length_R] Array of rising edge Y values (current) {0.00 0.10 0.90 1.00} XF[1:Length_F] Array of falling edge X values (time) {0.50e-9 1.00e-9 2.00e-9 2.50e-9} YF[1:Length_F] Array of falling edge Y values (current) {1.00 0.90 0.10 0.00} IBIS_T

A lossless transmission line.

n1 Signal terminal for end 1 ref1 Reference terminal for end 1 n2 Signal terminal for end 2 ref2 Reference terminal for end 2 Z0 Transmission line impedance in ohms 50.0 TD Time delay in seconds 1.0e-9 IBIS_INPUT

An IBIS Input buffer.

PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply Input Pad terminal providing input to buffer Rcv_D Received data from buffer to core logic C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.50 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.50 Vinh Minimum threshold voltage for a logic high to be received 2.0 Vinl Maximum threshold voltage for a logic low to be received 0.8 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} IBIS_OUTPUT

An IBIS Output buffer.

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply Output Pad terminal providing output from buffer In_D Core data signal controlling buffer output PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PU_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 V_pc_ref Power clamp reference supply voltage 5.0 V_pu_ref Pullup reference supply voltage 5.0 V_pd_ref Pulldown reference supply voltage 0.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpu_length Number of elements in the I_pu and V_pu arrays 4 IVpd_length Number of elements in the I_pd and V_pd arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pu[1:IVpu_length] Array of current values for pullup I/V { 0.10 0.00 -0.10 -0.20} V_pu[1:IVpu_length] Array of voltage values for pullup I/V {-5.00 0.00 5.00 10.00} I_pd[1:IVpd_length] Array of current values for pulldown I/V {-0.10 0.00 0.10 0.20} V_pd[1:IVpd_length] Array of voltage values for pulldown I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTr2_length Number of elements in the Rising Waveform 2 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 VTf2_length Number of elements in the Falling Waveform 2 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {0.00 0.00 2.50 2.50} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vr2[1:VTr2_length] Array of voltage values for Rising Waveform 2 {2.50 2.50 5.00 5.00} Tr2[1:VTr2_length] Array of time values for Rising Waveform 2 {0.00 0.50e-9 0.80e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {5.00 5.00 2.50 2.50} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vf2[1:VTf2_length] Array of voltage values for Falling Waveform 2 {2.50 2.50 0.00 0.00} Tf2[1:VTf2_length] Array of time values for Falling Waveform 2 {0.00 0.50e-9 0.80e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 0.0 Vfx_r2 V_fixture value for Rising Waveform 2 5.0 Vfx_f1 V_fixture value for Falling Waveform 1 5.0 Vfx_f2 V_fixture value for Falling Waveform 2 0.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_r2 R_fixture value for Rising Waveform 2 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Rfx_f2 R_fixture value for Falling Waveform21 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5 IBIS_IO

An IBIS I/O buffer.

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply IO Pad terminal providing input to and output from buffer In_D Core data signal controlling buffer output En_D Core signal controlling buffer enable state Rcv_D Received data from buffer to core logic PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PU_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 Vinh Minimum threshold voltage for a logic high to be received 2.0 Vinl Maximum threshold voltage for a logic low to be received 0.8 V_pc_ref Power clamp reference supply voltage 5.0 V_pu_ref Pullup reference supply voltage 5.0 V_pd_ref Pulldown reference supply voltage 0.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpu_length Number of elements in the I_pu and V_pu arrays 4 IVpd_length Number of elements in the I_pd and V_pd arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pu[1:IVpu_length] Array of current values for pullup I/V { 0.10 0.00 -0.10 -0.20} V_pu[1:IVpu_length] Array of voltage values for pullup I/V {-5.00 0.00 5.00 10.00} I_pd[1:IVpd_length] Array of current values for pulldown I/V {-0.10 0.00 0.10 0.20} V_pd[1:IVpd_length] Array of voltage values for pulldown I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTr2_length Number of elements in the Rising Waveform 2 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 VTf2_length Number of elements in the Falling Waveform 2 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {0.00 0.00 2.50 2.50} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vr2[1:VTr2_length] Array of voltage values for Rising Waveform 2 {2.50 2.50 5.00 5.00} Tr2[1:VTr2_length] Array of time values for Rising Waveform 2 {0.00 0.50e-9 0.80e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {5.00 5.00 2.50 2.50} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vf2[1:VTf2_length] Array of voltage values for Falling Waveform 2 {2.50 2.50 0.00 0.00} Tf2[1:VTf2_length] Array of time values for Falling Waveform 2 {0.00 0.50e-9 0.80e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 0.0 Vfx_r2 V_fixture value for Rising Waveform 2 5.0 Vfx_f1 V_fixture value for Falling Waveform 1 5.0 Vfx_f2 V_fixture value for Falling Waveform 2 0.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_r2 R_fixture value for Rising Waveform 2 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Rfx_f2 R_fixture value for Falling Waveform21 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5 IBIS_3STATE

An IBIS Tristate Output buffer.

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply IO Pad terminal providing output from buffer In_D Core data signal controlling buffer output En_D Core signal controlling buffer enable state PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PU_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 Vinh Minimum threshold voltage for a logic high to be received 2.0 Vinl Maximum threshold voltage for a logic low to be received 0.8 V_pc_ref Power clamp reference supply voltage 5.0 V_pu_ref Pullup reference supply voltage 5.0 V_pd_ref Pulldown reference supply voltage 0.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpu_length Number of elements in the I_pu and V_pu arrays 4 IVpd_length Number of elements in the I_pd and V_pd arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pu[1:IVpu_length] Array of current values for pullup I/V { 0.10 0.00 -0.10 -0.20} V_pu[1:IVpu_length] Array of voltage values for pullup I/V {-5.00 0.00 5.00 10.00} I_pd[1:IVpd_length] Array of current values for pulldown I/V {-0.10 0.00 0.10 0.20} V_pd[1:IVpd_length] Array of voltage values for pulldown I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTr2_length Number of elements in the Rising Waveform 2 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 VTf2_length Number of elements in the Falling Waveform 2 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {0.00 0.00 2.50 2.50} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vr2[1:VTr2_length] Array of voltage values for Rising Waveform 2 {2.50 2.50 5.00 5.00} Tr2[1:VTr2_length] Array of time values for Rising Waveform 2 {0.00 0.50e-9 0.80e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {5.00 5.00 2.50 2.50} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vf2[1:VTf2_length] Array of voltage values for Falling Waveform 2 {2.50 2.50 0.00 0.00} Tf2[1:VTf2_length] Array of time values for Falling Waveform 2 {0.00 0.50e-9 0.80e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 0.0 Vfx_r2 V_fixture value for Rising Waveform 2 5.0 Vfx_f1 V_fixture value for Falling Waveform 1 5.0 Vfx_f2 V_fixture value for Falling Waveform 2 0.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_r2 R_fixture value for Rising Waveform 2 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Rfx_f2 R_fixture value for Falling Waveform21 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5 IBIS_OPENSINK

An IBIS Opensink buffer (no pullup).

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply IO Pad terminal providing output from buffer In_D Core data signal controlling buffer output PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PU_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 V_pc_ref Power clamp reference supply voltage 5.0 V_pd_ref Pulldown reference supply voltage 0.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpd_length Number of elements in the I_pd and V_pd arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pd[1:IVpd_length] Array of current values for pulldown I/V {-0.10 0.00 0.10 0.20} V_pd[1:IVpd_length] Array of voltage values for pulldown I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {2.50 2.50 5.00 5.00} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 0.50e-9 0.80e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {5.00 5.00 2.50 2.50} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 5.0 Vfx_f1 V_fixture value for Falling Waveform 1 5.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5 IBIS_IO_OPENSINK

An IBIS I/O Opensink buffer (no pullup).

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply IO Pad terminal providing output from buffer In_D Core data signal controlling buffer output En_D Core signal controlling buffer enable state Rcv_D Received data from buffer to core logic PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 Vinh Minimum threshold voltage for a logic high to be received 2.0 Vinl Maximum threshold voltage for a logic low to be received 0.8 V_pc_ref Power clamp reference supply voltage 5.0 V_pd_ref Pulldown reference supply voltage 0.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpd_length Number of elements in the I_pd and V_pd arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pd[1:IVpd_length] Array of current values for pulldown I/V {-0.10 0.00 0.10 0.20} V_pd[1:IVpd_length] Array of voltage values for pulldown I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {2.50 2.50 5.00 5.00} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 0.50e-9 0.80e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {5.00 5.00 2.50 2.50} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 5.0 Vfx_f1 V_fixture value for Falling Waveform 1 5.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5 IBIS_OPENSOURCE

An IBIS Opensource buffer (no pulldown).

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply IO Pad terminal providing output from buffer In_D Core data signal controlling buffer output PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PU_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 V_pc_ref Power clamp reference supply voltage 5.0 V_pu_ref Pullup reference supply voltage 5.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpu_length Number of elements in the I_pu and V_pu arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pu[1:IVpu_length] Array of current values for pullup I/V { 0.10 0.00 -0.10 -0.20} V_pu[1:IVpu_length] Array of voltage values for pullup I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {0.00 0.00 2.50 2.50} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {2.50 2.50 0.00 0.00} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 0.50e-9 0.80e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 0.0 Vfx_f1 V_fixture value for Falling Waveform 1 0.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5 IBIS_IO_OPENSOURCE

An IBIS I/O Opensource buffer (no pulldown).

PU_ref Pullup reference voltage supply PD_ref Pulldown reference voltage supply IO Pad terminal providing output from buffer In_D Core data signal controlling buffer output En_D Core signal controlling buffer enable state Rcv_D Received data from buffer to core logic PC_ref Power clamp reference voltage supply GC_ref Ground clamp reference voltage supply C_comp Component die capacitance in farads 5.0p k_C_comp_pc Fraction of C_comp referenced to PC_ref terminal 0.25 k_C_comp_pu Fraction of C_comp referenced to PU_ref terminal 0.25 k_C_comp_pd Fraction of C_comp referenced to PD_ref terminal 0.25 k_C_comp_gc Fraction of C_comp referenced to GC_ref terminal 0.25 Vinh Minimum threshold voltage for a logic high to be received 2.0 Vinl Maximum threshold voltage for a logic low to be received 0.8 V_pc_ref Power clamp reference supply voltage 5.0 V_pu_ref Pullup reference supply voltage 5.0 V_gc_ref Ground clamp reference supply voltage 0.0 IVpc_length Number of elements in the I_pc and V_pc arrays 4 IVpu_length Number of elements in the I_pu and V_pu arrays 4 IVgc_length Number of elements in the I_gc and V_gc arrays 4 I_pc[1:IVpc_length] Array of current values for power clamp I/V { 0.08 0.00 0.00 0.00} V_pc[1:IVpc_length] Array of voltage values for power clamp I/V {-5.00 -1.00 5.00 10.00} I_pu[1:IVpu_length] Array of current values for pullup I/V { 0.10 0.00 -0.10 -0.20} V_pu[1:IVpu_length] Array of voltage values for pullup I/V {-5.00 0.00 5.00 10.00} I_gc[1:IVgc_length] Array of current values for ground clamp I/V {-0.08 0.00 0.00 0.00} V_gc[1:IVgc_length] Array of voltage values for ground clamp I/V {-5.00 -1.00 5.00 10.00} VTr1_length Number of elements in the Rising Waveform 1 time and voltage arrays 4 VTf1_length Number of elements in the Falling Waveform 1 time and voltage arrays 4 Vr1[1:VTr1_length] Array of voltage values for Rising Waveform 1 {0.00 0.00 2.50 2.50} Tr1[1:VTr1_length] Array of time values for Rising Waveform 1 {0.00 1.00e-9 2.00e-9 3.00e-9} Vf1[1:VTf1_length] Array of voltage values for Falling Waveform 1 {2.50 2.50 0.00 0.00} Tf1[1:VTf1_length] Array of time values for Falling Waveform 1 {0.00 0.50e-9 0.80e-9 3.00e-9} Vfx_r1 V_fixture value for Rising Waveform 1 0.0 Vfx_f1 V_fixture value for Falling Waveform 1 0.0 Rfx_r1 R_fixture value for Rising Waveform 1 50.0 from (0:inf) Rfx_f1 R_fixture value for Falling Waveform 1 50.0 from (0:inf) Max_dt Maximum dt between simulated time points 1.0e-12 from (0:inf) Vth In_D logic input threshold voltage 0.5