* SPICE netlist
VCLK1 CLK 0 PULSE(0 1 0n 0.1p 0.1p 1000n 2000n)
VDD1 VDD 0 1
M1 N002 Qm 0 0 N_50n l=250n w=150n
M2 N002 Qm VDD VDD P_50n l=250n w=450n
M3 N003 D 0 0 N_50n l=250n w=500n
M4 N003 D VDD VDD P_50n l=250n w=1499n
M5 Qm N001 0 0 N_50n l=250n w=150n
M6 Qm N001 VDD VDD P_50n l=250n w=450n
M7 N002 CLK N001 0 N_50n l=250n w=150n
M8 N002 CLK_BAR N001 VDD P_50n l=250n w=450n
M9 N003 CLK_BAR N001 0 N_50n l=250n w=150n
M10 N003 CLK N001 VDD P_50n l=250n w=450n
M11 CLK_BAR CLK 0 0 N_50n l=250n w=150n
M12 CLK_BAR CLK VDD VDD P_50n l=250n w=450n
VD D 0 PULSE(0 1 07n 0.1p 0.1p 100n 200n)
.tran 8000n

* LTspice schematic (.asc)
Version 4
SHEET 1 1568 1024
WIRE 784 -512 -400 -512
WIRE -656 -400 -656 -416
WIRE -656 -384 -656 -400
WIRE -272 -320 -272 -368
WIRE 176 -320 176 -432
WIRE 592 -320 592 -368
WIRE -320 -304 -352 -304
WIRE 544 -304 512 -304
WIRE -656 -272 -656 -304
WIRE 96 -272 64 -272
WIRE 224 -272 192 -272
WIRE 144 -256 144 -272
WIRE -272 -208 -272 -224
WIRE 64 -208 64 -272
WIRE 64 -208 -272 -208
WIRE 224 -208 224 -272
WIRE 352 -208 224 -208
WIRE 512 -208 512 -304
WIRE 512 -208 352 -208
WIRE 592 -208 592 -224
WIRE 784 -208 784 -512
WIRE 784 -208 592 -208
WIRE -400 -192 -400 -512
WIRE -352 -192 -352 -304
WIRE -352 -192 -400 -192
WIRE -272 -192 -272 -208
WIRE 592 -192 592 -208
WIRE -640 -128 -640 -144
WIRE 64 -128 64 -208
WIRE 96 -128 64 -128
WIRE 224 -128 224 -208
WIRE 224 -128 192 -128
WIRE -352 -112 -352 -192
WIRE -320 -112 -352 -112
WIRE 512 -112 512 -208
WIRE 544 -112 512 -112
WIRE -272 -48 -272 -96
WIRE 592 -48 592 -96
WIRE -640 -32 -640 -48
WIRE 176 32 176 -80
WIRE 704 80 704 64
WIRE -272 144 -272 96
WIRE 176 144 176 32
WIRE -656 160 -656 112
WIRE -320 160 -352 160
WIRE -704 176 -736 176
WIRE 704 176 704 160
WIRE 96 192 64 192
WIRE 224 192 192 192
WIRE 144 208 144 192
WIRE -352 240 -352 160
WIRE -352 240 -432 240
WIRE -272 256 -272 240
WIRE 64 256 64 192
WIRE 64 256 -272 256
WIRE 224 256 224 192
WIRE 352 256 352 -208
WIRE 352 256 224 256
WIRE -656 272 -656 256
WIRE -480 272 -656 272
WIRE -272 272 -272 256
WIRE -768 288 -784 288
WIRE -736 288 -736 176
WIRE -736 288 -768 288
WIRE -656 288 -656 272
WIRE 64 336 64 256
WIRE 96 336 64 336
WIRE 224 336 224 256
WIRE 224 336 192 336
WIRE -352 352 -352 240
WIRE -320 352 -352 352
WIRE -736 368 -736 288
WIRE -704 368 -736 368
WIRE 528 384 176 384
WIRE -272 416 -272 368
WIRE -656 432 -656 384
WIRE -480 464 -480 272
WIRE 784 464 -480 464
WIRE -768 512 -768 288
WIRE 784 512 -768 512
FLAG -640 -32 0
FLAG -640 -144 CLK
FLAG -656 -272 0
FLAG -656 -400 VDD
FLAG -272 -144 0
FLAG -272 -272 VDD
FLAG -272 -48 0
FLAG -272 -368 VDD
FLAG -272 320 0
FLAG -272 192 VDD
FLAG -272 416 0
FLAG -272 96 VDD
FLAG 592 -144 0
FLAG 592 -272 VDD
FLAG 592 -48 0
FLAG 592 -368 VDD
FLAG 144 -128 0
FLAG 144 -256 VDD
FLAG 144 336 0
FLAG 144 208 VDD
FLAG -656 336 0
FLAG -656 208 VDD
FLAG -656 432 0
FLAG -656 112 VDD
FLAG -784 288 CLK
FLAG 784 512 CLK
FLAG 784 464 CLK_BAR
FLAG 176 -432 CLK_BAR
FLAG 176 32 CLK
FLAG -432 240 D
FLAG 784 -208 Qm
FLAG 528 384 CLK_BAR
FLAG 704 176 0
FLAG 704 64 D
SYMBOL voltage -640 -144 R0
SYMATTR InstName CLK1
SYMATTR Value PULSE(0 1 0n 0.1p 0.1p 1000n 2000n)
SYMBOL voltage -656 -400 R0
SYMATTR InstName VDD1
SYMATTR Value 1
SYMBOL nmos4 -320 -192 R0
SYMATTR InstName M1
SYMATTR Value N_50n
SYMATTR Value2 l=250n w=150n
SYMBOL pmos4 -320 -224 M180
SYMATTR InstName M2
SYMATTR Value P_50n
SYMATTR Value2 l=250n w=450n
SYMBOL nmos4 -320 272 R0
SYMATTR InstName M3
SYMATTR Value N_50n
SYMATTR Value2 l=250n w=500n
SYMBOL pmos4 -320 240 M180
SYMATTR InstName M4
SYMATTR Value P_50n
SYMATTR Value2 l=250n w=1499n
SYMBOL nmos4 544 -192 R0
SYMATTR InstName M5
SYMATTR Value N_50n
SYMATTR Value2 l=250n w=150n
SYMBOL pmos4 544 -224 M180
SYMATTR InstName M6
SYMATTR Value P_50n
SYMATTR Value2 l=250n w=450n
SYMBOL nmos4 96 -80 R270
SYMATTR InstName M7
SYMATTR Value N_50n
SYMATTR Value2 l=250n w=150n
SYMBOL pmos4 96 -320 M90
SYMATTR InstName M8
SYMATTR Value P_50n
SYMATTR Value2 l=250n w=450n
SYMBOL nmos4 96 384 R270
SYMATTR InstName M9
SYMATTR Value N_50n
SYMATTR Value2 l=250n w=150n
SYMBOL pmos4 96 144 M90
SYMATTR InstName M10
SYMATTR Value P_50n
SYMATTR Value2 l=250n w=450n
SYMBOL nmos4 -704 288 R0
SYMATTR InstName M11
SYMATTR Value N_50n
SYMATTR Value2 l=250n w=150n
SYMBOL pmos4 -704 256 M180
SYMATTR InstName M12
SYMATTR Value P_50n
SYMATTR Value2 l=250n w=450n
SYMBOL voltage 704 64 R0
SYMATTR InstName D
SYMATTR Value PULSE(0 1 07n 0.1p 0.1p 100n 200n)