* SPICE netlist
M1 N004 D 0 0 NMOS l=300n w=800n
M2 N002 CLK N004 VDD PMOS l=200n w=1u
M3 VDD D N002 VDD PMOS l=200n w=1u
M4 N005 CLK 0 0 NMOS l=300n w=800n
M5 N003 N004 N005 0 NMOS l=300n w=800n
M6 VDD CLK N003 VDD PMOS l=200n w=1u
M7 VDD N001 ~Q VDD PMOS l=200n w=1u
M8 N006 N001 0 0 NMOS l=300n w=800n
M9 ~Q CLK N006 0 NMOS l=300n w=800n
M10 VDD ~R ~Q VDD PMOS l=200n w=1u
M11 VDD ~Q Q VDD PMOS l=200n w=1u
M12 Q ~Q 0 0 NMOS l=300n w=800n

* LTspice schematic (.asc)
Version 4
SHEET 1 2032 592
WIRE -584 -264 -584 -296
WIRE -472 -264 -584 -264
WIRE 104 -248 104 -296
WIRE 184 -248 104 -248
WIRE 488 -248 488 -296
WIRE 632 -248 488 -248
WIRE 840 -248 840 -280
WIRE 920 -248 840 -248
WIRE -248 -232 -248 -296
WIRE -152 -232 -248 -232
WIRE -584 -200 -584 -264
WIRE -248 -200 -248 -232
WIRE 104 -200 104 -248
WIRE 488 -200 488 -248
WIRE 840 -200 840 -248
WIRE -472 -152 -472 -264
WIRE -472 -152 -584 -152
WIRE -152 -152 -152 -232
WIRE -152 -152 -248 -152
WIRE 184 -152 184 -248
WIRE 184 -152 104 -152
WIRE 632 -152 632 -248
WIRE 632 -152 488 -152
WIRE 920 -152 920 -248
WIRE 920 -152 840 -152
WIRE -872 -120 -1016 -120
WIRE -632 -120 -872 -120
WIRE -296 -120 -376 -120
WIRE 56 -120 -40 -120
WIRE 440 -120 376 -120
WIRE 792 -120 680 -120
WIRE 104 -40 104 -104
WIRE 488 -40 488 -104
WIRE 488 -40 104 -40
WIRE 680 -40 680 -120
WIRE 680 -40 488 -40
WIRE 840 -40 840 -104
WIRE 1016 -40 840 -40
WIRE -584 -8 -584 -104
WIRE -248 -8 -248 -104
WIRE 104 -8 104 -40
WIRE 840 -8 840 -40
WIRE -472 40 -472 -152
WIRE -472 40 -584 40
WIRE -120 40 -248 40
WIRE 216 40 104 40
WIRE 952 40 840 40
WIRE -120 56 -120 40
WIRE -632 72 -1016 72
WIRE -296 72 -456 72
WIRE 680 72 680 -40
WIRE 792 72 680 72
WIRE 840 136 840 88
WIRE 952 136 952 40
WIRE -584 152 -584 88
WIRE -456 152 -456 72
WIRE -456 152 -584 152
WIRE -584 168 -584 152
WIRE -248 168 -248 88
WIRE 104 168 104 88
WIRE -472 216 -584 216
WIRE -120 216 -248 216
WIRE 216 216 216 40
WIRE 216 216 104 216
WIRE -872 248 -872 -120
WIRE -632 248 -872 248
WIRE -296 248 -344 248
WIRE -40 248 -40 -120
WIRE 56 248 -40 248
WIRE 488 280 488 -40
WIRE 600 280 488 280
WIRE -584 296 -584 264
WIRE -472 296 -472 216
WIRE -248 296 -248 264
WIRE -120 296 -120 216
WIRE 104 296 104 264
WIRE 216 296 216 216
FLAG -1016 -120 D
IOPIN -384 -128 In
FLAG -584 -296 VDD
IOPIN 48 -304 In
FLAG -248 -296 VDD
IOPIN 384 -304 In
FLAG -1016 72 CLK
IOPIN -384 64 In
FLAG -344 248 CLK
IOPIN 288 240 In
FLAG 56 72 CLK
IOPIN 688 64 In
FLAG -376 -120 CLK
IOPIN 256 -128 In
FLAG -120 296 0
FLAG -120 56 0
FLAG 104 -296 VDD
IOPIN 736 -304 In
FLAG 216 296 0
FLAG 104 296 0
FLAG -584 296 0
FLAG -472 296 0
FLAG 376 -120 ~R
IOPIN 1008 -128 In
FLAG 488 -296 VDD
IOPIN 1120 -304 In
FLAG 840 136 0
FLAG 952 136 0
FLAG 1016 -40 Q
IOPIN 1648 -48 Out
FLAG 600 280 ~Q
IOPIN 1232 272 Out
FLAG 840 -280 VDD
IOPIN 1472 -288 In
FLAG -248 296 0
SYMBOL nmos4 -632 168 R0
SYMATTR InstName M1
SYMATTR Value2 l=300n w=800n
SYMBOL pmos4 -632 -8 R0
SYMATTR InstName M2
SYMATTR Value2 l=200n w=1u
SYMBOL pmos4 -632 -200 R0
SYMATTR InstName M3
SYMATTR Value2 l=200n w=1u
SYMBOL nmos4 -296 168 R0
SYMATTR InstName M4
SYMATTR Value2 l=300n w=800n
SYMBOL nmos4 -296 -8 R0
SYMATTR InstName M5
SYMATTR Value2 l=300n w=800n
SYMBOL pmos4 -296 -200 R0
SYMATTR InstName M6
SYMATTR Value2 l=200n w=1u
SYMBOL pmos4 56 -200 R0
SYMATTR InstName M7
SYMATTR Value2 l=200n w=1u
SYMBOL nmos4 56 168 R0
SYMATTR InstName M8
SYMATTR Value2 l=300n w=800n
SYMBOL nmos4 56 -8 R0
SYMATTR InstName M9
SYMATTR Value2 l=300n w=800n
SYMBOL pmos4 440 -200 R0
SYMATTR InstName M10
SYMATTR Value2 l=200n w=1u
SYMBOL pmos4 792 -200 R0
SYMATTR InstName M11
SYMATTR Value2 l=200n w=1u
SYMBOL nmos4 792 -8 R0
SYMATTR InstName M12
SYMATTR Value2 l=300n w=800n