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3-2.sp
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3-2.sp
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* 3- CA4 *
************ Library *************
.prot
.inc '32nm_bulk.pm'
.unprot
********* Params*******
.param Lmin=32n
+Vdd = 1V
.global Vdd
****** Sources ******
Vdd 1 0 1
Vb b 0 dc 0
VbBar bBar 0 dc 1
Vclk clk 0 pulse 0 1 0n 50p 50p 2n 4n
Vdata data 0 pulse 0 1 2n 50p 50p 1n 2n
************************ INVERTER ************************************
.SUBCKT MyInverter in GND NODE OUT
Mp31 OUT IN NODE NODE pmos l='Lmin' w='4*Lmin'
Mn32 OUT IN GND GND nmos l='Lmin' w='2*Lmin'
CL OUT 0 10f
.ENDS MyInverter
**************************** NAND2 GATE ****************************
.SUBCKT MyNand inA inB GND NODE AOUT
Mp11 AOUT inB NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mp12 AOUT inA NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mn13 AOUT inA mid mid nmos l ='Lmin' w ='2*Lmin'
Mn14 mid inB GND GND nmos l ='Lmin' w ='2*Lmin'
CL AOUT 0 5f
.ENDS MyNand
**************************** NAND3 GATE ****************************
.SUBCKT MyNand3 inA inB inC GND NODE AOUT
Mp21 AOUT inA NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mp22 AOUT inB NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mp23 AOUT inC NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mn24 AOUT inA mid mid nmos l ='Lmin' w ='2*Lmin'
Mn25 mid inB mid2 mid2 nmos l ='Lmin' w ='2*Lmin'
Mn26 mid2 inC GND GND nmos l ='Lmin' w ='2*Lmin'
CL AOUT 0 5f
.ENDS MyNand3
************************ Combinational Circuit ***********************
.SUBCKT MyCombinational inA inABar inB inBBar GND NODE AOUT
Mp11 mid1 inA NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mp12 mid1 inB NODE NODE pmos l ='Lmin' w ='2*Lmin'
Mp13 AOUT inBBar mid1 mid1 pmos l ='Lmin' w ='2*Lmin'
Mp14 AOUT inABar mid1 mid1 pmos l ='Lmin' w ='2*Lmin'
Mn15 AOUT inA mid2 mid2 nmos l ='Lmin' w ='2*Lmin'
Mn16 AOUT inABar mid3 mid3 nmos l ='Lmin' w ='2*Lmin'
Mn17 mid2 inB GND GND nmos l ='Lmin' w ='2*Lmin'
Mn18 mid3 inBBar GND GND nmos l ='Lmin' w ='2*Lmin'
.ENDS MyCombinational
*****************************Flip Flop***********************************
.SUBCKT MyFF data clk GND VDD Q Qbar
Xnand1 nand4out nand2out GND VDD nand1out MyNand
Xnand2 nand1out clk GND VDD nand2out MyNand
Xnand3 nand2out clk nand4out GND VDD nand3out MyNand3
Xnand4 nand3out data GND VDD nand4out MyNand
Xnand5 nand2out Qbar GND VDD Q MyNand
Xnand6 Q nand3out GND VDD Qbar MyNand
.ENDS MyFF
***************************************************************************
XFF0 data clk 0 1 a Qbar MyFF
Xinv0 a 0 1 aBar MyInverter
XComb a aBar b bBar 0 1 f MyCombinational
CL f 0 10f
Xinv1 f 0 1 combOut1 MyInverter
Xinv2 combOut1 0 1 combOut2 MyInverter
Xinv3 combOut2 0 1 combOut3 MyInverter
Xinv4 combOut3 0 1 combOut MyInverter
XFF1 combOut clk 0 1 out outbar MyFF
***** Type of Analysis *****
.tran 3ns 200ns 1ns
.MEASURE TRAN t_rise
+ trig V(out) val = '0.1*Vdd' rise = 2
+ targ V(out) val = '0.9*Vdd' rise = 2
.MEASURE TRAN t_fall
+ trig V(out) val = '0.9*Vdd' fall = 2
+ targ V(out) val = '0.1*Vdd' fall = 2
.MEASURE TRAN max_frequency param = '1 / (t_fall + t_rise)'
.END