* SPICE netlist
M1 N006 sense_N 0 0 nmos45lp l=0.27um w=0.22um
VDD VDD 0 {vdd}
VDDby2 VDDby2 0 {vddhalf}
Vsp sense_P 0 PWL(34n {vdd} 34.05n 0 133n 0 133.005n {vdd}) Rser=100 Cpar=10fF
M2 bitline1 bitline0 NLAT 0 nmos45hp l=0.16um w={ntw}
M3 bitline0 bitline1 N006 0 nmos45hp l=0.16um w={ntw}
M4 bitline1 Eq bitline0 0 nmos45hp l=0.16um w={prentw}
M5 bitline0 Eq VDDby2 0 nmos45hp l=0.16um w={prentw}
M6 VDDby2 Eq bitline1 0 nmos45hp l=0.16um w={prentw}
M7 N001 ra0 N002 0 nmos45lp l=0.085um w=0.555um
Cmbit0 mb0 N003 24fF
M8 N007 ra3 mb3 0 nmos45lp l=0.085um w=0.055um
Cmbit1 mb3 0 24fF
Vra0 ra0 0 PWL(30n 0 30.5n 2.9 130n 2.9 130.5n 0) Rser=2048 Cpar=0.6pF
M9 ACT sense_p VDD VDD pmos45lp l=0.27um w=0.22um
M10 bitline1 bitline0 N004 VDD pmos45hp l=0.16um w={tw}
M11 bitline0 bitline1 ACT VDD pmos45hp l=0.16um w={tw}
Vsn sense_N 0 PWL(34n 0 34.005n {vdd} 133n {vdd} 133.005n 0) Rser=100 Cpar=10fF
Cmbit2 N001 0 144fF
Cmbit3 N005 0 144fF
R1 N001 bitline0 10000
R2 bitline1 N005 10000
R4 0 N003 30000
R3 N002 mb0 1000
R5 N005 N007 1000
R6 N004 ACT 25000
R7 NLAT N006 25000
M12 bitline0 EqNot VDDby2 VDD pmos45hp l=0.16um w={pretw}
M13 VDDby2 EqNot bitline1 VDD pmos45hp l=0.16um w={pretw}
Veq1 EqNot 0 PWL(0n 1.5 0.6n 0 25.6n 0 26.2n {vdd} 133n {vdd} 133.6n 0)
Veq2 Eq 0 PWL(0n 0 0.6n 1.5 25.6n 1.5 26.2n 0 133n 0 133.6n {vdd})
.include cmosedu_models.txt
.ic v(bitline0)={vddhalf} v(bitline1)={vddhalf} v(mb0)={vdd}
.tran 230ns uic
.step param X list 1 2 3 4
.param vdd=table(X, 1, 1.35V, 2, 1.1V, 3, 1.35V, 4, 1.1V)
.param vddhalf=table(X, 1, 0.675V, 2, 0.55V, 3, 0.675V, 4, 0.55V)
.param tw = 2.5um
.param ntw = 1um
.param pretw=2.5um
.param prentw=2.5um

* LTspice schematic (.asc)
Version 4
SHEET 1 2192 1680
WIRE -40 -808 -40 -840
WIRE 72 -680 -40 -840
WIRE -40 -664 -40 -712
WIRE 424 -584 424 -600
WIRE 968 -568 968 -600
WIRE 1096 -568 1096 -600
WIRE -152 -536 -360 -536
WIRE -88 -536 -88 -728
WIRE -88 -536 -152 -536
WIRE 280 -536 -88 -536
WIRE -40 -504 -40 -584
WIRE -40 -488 -40 -504
WIRE 424 -488 424 -504
WIRE -1080 -456 -1080 -488
WIRE 968 -456 968 -488
WIRE 1096 -456 1096 -488
WIRE 72 -440 72 -680
WIRE 136 -440 72 -440
WIRE -152 -424 -184 -424
WIRE -40 -424 -72 -424
WIRE -184 -392 -184 -424
WIRE 72 -360 72 -440
WIRE -1080 -344 -1080 -376
WIRE -264 -328 -312 -328
WIRE -56 -328 -264 -328
WIRE 136 -248 -8 -248
WIRE 216 -248 136 -248
WIRE 264 -248 216 -248
WIRE 136 -216 136 -248
WIRE 344 -216 344 -248
WIRE 216 -200 184 -200
WIRE 296 -200 264 -200
WIRE 616 -120 424 -120
WIRE -632 -104 -632 -120
WIRE 72 -104 72 -280
WIRE 136 -104 136 -120
WIRE 136 -104 72 -104
WIRE 216 -104 264 -200
WIRE 216 -104 136 -104
WIRE 264 -104 216 -200
WIRE 344 -104 344 -120
WIRE 344 -104 264 -104
WIRE 424 -104 424 -120
WIRE 424 -104 344 -104
WIRE -632 -8 -632 -24
WIRE 72 -8 72 -104
WIRE 216 -8 72 -8
WIRE 424 -8 424 -104
WIRE 424 -8 312 -8
WIRE -56 40 -88 40
WIRE 184 40 -56 40
WIRE 232 40 184 40
WIRE 360 40 232 40
WIRE 600 40 360 40
WIRE 184 56 184 40
WIRE 360 56 360 40
WIRE 72 88 72 -8
WIRE 72 104 72 88
WIRE 104 104 72 104
WIRE 248 104 200 104
WIRE 280 104 248 104
WIRE 424 104 424 -8
WIRE 424 104 376 104
WIRE 616 104 616 -120
WIRE 424 120 424 104
WIRE -648 152 -648 136
WIRE 248 152 248 104
WIRE 200 200 -24 200
WIRE 344 200 200 200
WIRE 200 232 200 200
WIRE 344 232 344 200
WIRE -648 248 -648 232
WIRE 616 264 616 184
WIRE 664 264 616 264
WIRE 72 280 72 104
WIRE 120 280 72 280
WIRE 248 280 248 152
WIRE 248 280 216 280
WIRE 264 280 248 280
WIRE 424 280 424 120
WIRE 424 280 360 280
WIRE 664 312 664 264
WIRE 72 360 72 280
WIRE 136 360 72 360
WIRE 216 360 136 360
WIRE 344 360 280 360
WIRE 424 360 424 280
WIRE 424 360 344 360
WIRE 136 376 136 360
WIRE 344 376 344 360
WIRE -1096 392 -1096 360
WIRE 216 456 280 360
WIRE 216 456 184 456
WIRE 280 456 216 360
WIRE 296 456 280 456
WIRE -1096 504 -1096 472
WIRE 136 504 136 472
WIRE 136 504 24 504
WIRE 152 504 136 504
WIRE 264 504 232 504
WIRE 344 504 344 472
WIRE 344 504 264 504
WIRE 520 536 504 536
WIRE 616 536 616 264
WIRE 616 536 600 536
WIRE 504 568 504 536
WIRE -24 584 -280 584
WIRE 392 680 184 680
WIRE 456 680 456 648
WIRE 456 680 392 680
WIRE 856 680 456 680
WIRE 504 712 504 664
WIRE 504 728 504 712
WIRE 616 840 616 536
FLAG 24 552 0
FLAG 968 -456 0
FLAG 968 -600 VDD
FLAG 1096 -456 0
FLAG 1096 -600 VDDby2
FLAG -1080 -344 0
FLAG -1080 -488 sense_P
FLAG 344 424 0
FLAG 136 424 0
FLAG 264 -8 0
FLAG 152 104 0
FLAG 328 104 0
FLAG -56 40 Eq
FLAG 248 152 VDDby2
FLAG -280 584 sense_N
FLAG 24 600 0
FLAG 72 88 bitline0
FLAG 424 120 bitline1
FLAG -40 -760 0
FLAG -184 -392 0
FLAG -40 -504 mb0
FLAG -152 -536 ra0
FLAG 504 616 0
FLAG 504 792 0
FLAG 504 712 mb3
FLAG 392 680 ra3
FLAG 424 -488 0
FLAG 424 -600 ra0
FLAG -8 -296 VDD
FLAG 344 -168 VDD
FLAG 136 -168 VDD
FLAG -8 -344 VDD
FLAG -264 -328 sense_p
FLAG 216 -248 ACT
FLAG 264 504 NLAT
FLAG -1096 504 0
FLAG -1096 360 sense_N
FLAG 136 -376 0
FLAG 664 376 0
FLAG -24 200 EqNot
FLAG 168 280 VDD
FLAG 312 280 VDD
FLAG -648 248 0
FLAG -648 136 EqNot
FLAG -632 -8 0
FLAG -632 -120 Eq
SYMBOL nmos4 -24 504 R0
SYMATTR InstName M1
SYMATTR Value nmos45lp
SYMATTR Value2 l=0.27um w=0.22um
SYMBOL voltage 968 -584 R0
SYMATTR Value {vdd}
SYMATTR InstName VDD
SYMBOL voltage 1096 -584 R0
SYMATTR Value {vddhalf}
SYMATTR InstName VDDby2
SYMBOL voltage -1080 -472 R0
SYMATTR SpiceLine Rser=100 Cpar=10fF
SYMATTR Value PWL(34n {vdd} 34.05n 0 133n 0 133.005n {vdd})
SYMATTR InstName Vsp
SYMBOL nmos4 296 376 R0
SYMATTR InstName M2
SYMATTR Value nmos45hp
SYMATTR Value2 l=0.16um w={ntw}
SYMBOL nmos4 184 376 M0
SYMATTR InstName M3
SYMATTR Value nmos45hp
SYMATTR Value2 l=0.16um w={ntw}
SYMBOL nmos4 312 40 M270
SYMATTR InstName M4
SYMATTR Value nmos45hp
SYMATTR Value2 l=0.16um w={prentw}
SYMBOL nmos4 104 56 M90
SYMATTR InstName M5
SYMATTR Value nmos45hp
SYMATTR Value2 l=0.16um w={prentw}
SYMBOL nmos4 280 56 M90
SYMATTR InstName M6
SYMATTR Value nmos45hp
SYMATTR Value2 l=0.16um w={prentw}
SYMBOL nmos4 -88 -808 R0
SYMATTR InstName M7
SYMATTR Value nmos45lp
SYMATTR Value2 l=0.085um w=0.555um
SYMBOL cap -56 -488 R0
SYMATTR Value 24fF
SYMATTR InstName Cmbit0
SYMBOL nmos4 456 568 R0
SYMATTR InstName M8
SYMATTR Value nmos45lp
SYMATTR Value2 l=0.085um w=0.055um
SYMBOL cap 488 728 R0
SYMATTR Value 24fF
SYMATTR InstName Cmbit1
SYMBOL voltage 424 -600 R0
SYMATTR InstName Vra0
SYMATTR Value PWL(30n 0 30.5n 2.9 130n 2.9 130.5n 0)
SYMATTR SpiceLine Rser=2048 Cpar=0.6pF
SYMBOL pmos4 -56 -248 M180
SYMATTR InstName M9
SYMATTR Value pmos45lp
SYMATTR Value2 l=0.27um w=0.22um
SYMBOL pmos4 296 -120 M180
SYMATTR InstName M10
SYMATTR Value pmos45hp
SYMATTR Value2 l=0.16um w={tw}
SYMBOL pmos4 184 -120 R180
SYMATTR InstName M11
SYMATTR Value pmos45hp
SYMATTR Value2 l=0.16um w={tw}
SYMBOL voltage -1096 376 R0
SYMATTR SpiceLine Rser=100 Cpar=10fF
SYMATTR Value PWL(34n 0 34.005n {vdd} 133n {vdd} 133.005n 0)
SYMATTR InstName Vsn
SYMBOL cap 120 -440 R0
SYMATTR Value 144fF
SYMATTR InstName Cmbit2
SYMBOL cap 648 312 R0
SYMATTR Value 144fF
SYMATTR InstName Cmbit3
SYMBOL res 56 -376 R0
SYMATTR Value 10000
SYMATTR InstName R1
SYMBOL res 600 88 R0
SYMATTR Value 10000
SYMATTR InstName R2
SYMBOL res -168 -440 M90
SYMATTR InstName R4
SYMATTR Value 30000
SYMBOL res -56 -680 R0
SYMATTR InstName R3
SYMATTR Value 1000
SYMBOL res 616 520 R90
SYMATTR InstName R5
SYMATTR Value 1000
SYMBOL res 360 -264 R90
SYMATTR InstName R6
SYMATTR Value 25000
SYMBOL res 248 488 R90
SYMATTR InstName R7
SYMATTR Value 25000
SYMBOL pmos4 120 232 M90
SYMATTR InstName M12
SYMATTR Value pmos45hp
SYMATTR Value2 l=0.16um w={pretw}
SYMBOL pmos4 264 232 M90
SYMATTR InstName M13
SYMATTR Value pmos45hp
SYMATTR Value2 l=0.16um w={pretw}
SYMBOL voltage -648 136 R0
SYMATTR InstName Veq1
SYMATTR Value PWL(0n 1.5 0.6n 0 25.6n 0 26.2n {vdd} 133n {vdd} 133.6n 0)
SYMBOL voltage -632 -120 R0
SYMATTR InstName Veq2
SYMATTR Value PWL(0n 0 0.6n 1.5 25.6n 1.5 26.2n 0 133n 0 133.6n {vdd})