* SPICE netlist
M1 N001 Q N004 N001 PMOS l=20n w=320n
M2 N002 QB N003 N002 PMOS l=20n w=320n
M3 N004 Q 0 0 NMOS l=20n w=960n
M4 N003 QB N005 N005 NMOS l=20n w=960n
M5 BL WL QB 0 NMOS l=20n w=128n
M6 Q WL BLB 0 NMOS l=20n w=128n
V1 N001 0 850m
V2 BL 0 PULSE(850m 0 0 10p 10p 490p 1n)
V3 BLB 0 PULSE(0 850m 0 10p 10p 490p 1n)
V4 WL 0 PWL(0 850m 2.49n 850m 2.5n 0 3n 0 3.01n 0 3.02n 850m)
M7 N001 WL N002 N001 PMOS
M8 N005 N006 0 0 NMOS
V5 N006 0 PULSE(850m 0 0 10p 10p 490p 1n)
.tran 8n

* LTspice schematic (.asc)
Version 4
SHEET 1 1136 1184
WIRE 40 -576 40 -592
WIRE 40 -448 40 -496
WIRE 40 -448 -168 -448
WIRE 184 -448 40 -448
WIRE -168 -400 -168 -448
WIRE -120 -400 -168 -400
WIRE -120 -352 -120 -400
WIRE -120 -352 -168 -352
WIRE -216 -320 -344 -320
WIRE -568 -192 -568 -256
WIRE 488 -192 488 -272
WIRE -168 -128 -168 -304
WIRE -168 -128 -232 -128
WIRE 184 -128 184 -448
WIRE 248 -128 184 -128
WIRE -168 -112 -168 -128
WIRE 184 -112 184 -128
WIRE -568 -80 -568 -112
WIRE 488 -80 488 -112
WIRE -232 -64 -232 -128
WIRE -168 -64 -232 -64
WIRE 248 -64 248 -128
WIRE 248 -64 184 -64
WIRE -88 -32 -120 -32
WIRE 136 -32 104 -32
WIRE -440 -16 -440 -64
WIRE -456 32 -536 32
WIRE -264 32 -360 32
WIRE 104 32 104 -32
WIRE 104 32 -264 32
WIRE 392 32 392 -64
WIRE -88 80 -88 -32
WIRE 296 80 -88 80
WIRE 376 80 296 80
WIRE 568 80 472 80
WIRE -408 112 -408 32
WIRE -168 128 -168 -16
WIRE 184 128 184 -16
WIRE 424 160 424 80
WIRE -168 176 -248 176
WIRE 264 176 184 176
WIRE -88 208 -88 80
WIRE -88 208 -120 208
WIRE 104 208 104 32
WIRE 136 208 104 208
WIRE -536 240 -536 176
WIRE -248 240 -248 176
WIRE -168 240 -168 224
WIRE -168 240 -248 240
WIRE 184 240 184 224
WIRE 264 240 264 176
WIRE 264 240 184 240
WIRE 184 304 184 240
WIRE -536 352 -536 320
WIRE -168 416 -168 240
WIRE -72 464 -168 464
WIRE -360 496 -536 496
WIRE -216 496 -280 496
WIRE -536 528 -536 496
WIRE -168 528 -168 512
WIRE -72 528 -72 464
WIRE -72 528 -168 528
WIRE -168 592 -168 528
FLAG -408 112 0
FLAG 424 160 0
FLAG 40 -592 0
FLAG -568 -80 0
FLAG -536 352 0
FLAG 488 -80 0
FLAG -264 32 Q
FLAG 296 80 QB
FLAG 392 -64 WL
FLAG -440 -64 WL
FLAG 568 80 BL
FLAG -536 32 BLB
FLAG -536 176 WL
FLAG -568 -256 BL
FLAG 488 -272 BLB
FLAG -344 -320 WL
FLAG 184 304 0
FLAG -168 592 0
FLAG -536 528 0
SYMBOL pmos4 136 -112 R0
SYMATTR InstName M1
SYMATTR Value2 l=20n w=320n
SYMBOL pmos4 -120 -112 M0
SYMATTR InstName M2
SYMATTR Value2 l=20n w=320n
SYMBOL nmos4 136 128 R0
SYMATTR InstName M3
SYMATTR Value2 l=20n w=960n
SYMBOL nmos4 -120 128 M0
SYMATTR InstName M4
SYMATTR Value2 l=20n w=960n
SYMBOL nmos4 472 32 R90
SYMATTR InstName M5
SYMATTR Value2 l=20n w=128n
SYMBOL nmos4 -360 -16 R90
SYMATTR InstName M6
SYMATTR Value2 l=20n w=128n
SYMBOL voltage 40 -480 R180
SYMATTR InstName V1
SYMATTR Value 850m
SYMBOL voltage -568 -208 R0
SYMATTR Value PULSE(850m 0 0 10p 10p 490p 1n)
SYMATTR InstName V2
SYMBOL voltage 488 -208 R0
SYMATTR InstName V3
SYMATTR Value PULSE(0 850m 0 10p 10p 490p 1n)
SYMBOL voltage -536 224 R0
SYMATTR Value PWL(0 850m 2.49n 850m 2.5n 0 3n 0 3.01n 0 3.02n 850m)
SYMATTR InstName V4
SYMBOL pmos4 -216 -400 R0
SYMATTR InstName M7
SYMBOL nmos4 -216 416 R0
SYMATTR InstName M8
SYMBOL voltage -264 496 R90
SYMATTR InstName V5
SYMATTR Value PULSE(850m 0 0 10p 10p 490p 1n)