*Min rising waveform curve for model DQBUFF_FULL *Spice Deck created by S2IBIS3 Version 1.1 *North Carolina State University ******************** 128Mx4, 64Mx8, 32Mx16 DDR400 SDRAM ********************** *******************Example HSPICE setup file for DQs and DQS******************* *********************************************************** **** ____ * **** IN--| \ * **** | }------PAD--\/\/\/--@@@@--|--PKG_OUT * **** ENOUT--|____/ | R_pkg L_pkg | * **** | ===C_pkg * **** ___ | | * **** / +|---| GND * **** RCVR_OUT--{ -|-----VREF * **** \___|-(ENOUT#) * *********************************************************** **** This netlist is for the x4, x8, and x16 512Mb DDR400 DDR SDRAM ********** **** The input signals are IN (input signal) and ENOUT (output enable signal). **** The I/O data is available on the signal PAD. **** The output of the input receiver circuit is the node RCVR_OUT. **** To account for package parasitics correlative impedance values **** (netlist elements R_pkg, L_pkg, C_pkg) have been attached to the PAD **** node. The package output is on the signal PKG_OUT. **** NOTE: This spice file is not designed to match datasheet timing numbers. **** Delay times are smaller than those given in the data sheets. **** To run this simulation, the files "model.cnr" and "dqbuff.inc" are **** required to be in the same directory as this netlist. **** Temperature settings are: Typical 40C, Slow 85C, Fast 0C .OPTIONS METHOD=GEAR DCON=1 .OPTIONS SEARCH=' ' $This option must be present for decryption to work **** Input signals and power supplies setup **** Note: vccp and vccr are regulated internal voltages **** Match up typ, min, or max voltages for corner sims *Vvccq vccq 0 DC = vccq Vvcc vcc 0 DC = vcc Vvccr vccr 0 DC = vccr Vvccp vccp 0 DC = vccp *Vvssq vssq 0 DC = 0 Vvref vref 0 DC = 'vccq/2' Vdrv fulldrv 0 DC = vccr $vccr = 100%, gnd = 54% **The fulldrv node selects between Full and Reduced output drive strengths. xi0 tscore fulldrv incore vref pad rcvr_out vccp vccq vssq vcc 0 vccr dqbuff rload rcvr_out 0 1000000 ets tscore 0 ts 0 'vccr' ein incore 0 in 0 'vccr' .LIB "model.cnr" SS .PARAM vccq = 2.50V .PARAM vcc = 2.50V .PARAM vccr = 1.925V .PARAM vccp = 3.413V RFIXS2I pad dum17854 50.0 VCCS2I vccq 0 DC 2.5 VGNDS2I vssq 0 DC 0.0 VENAS2I ts 0 DC 1.0 VINS2I in 0 PULSE(0.0 1.0 0 1.0E-10 1.0E-10 6.000000000000001E-9 1.2400000000000002E-8) VFIXS2I dum17854 0 DC 0.0 .TEMP 85.0 .OPTIONS INGOLD=2.0 .TRAN 3.0000000000000006E-11 3.0000000000000004E-9 .PRINT TRAN V(pad) .END