Version 4
SHEET 1 880 680
WIRE -576 432 -576 64
WIRE -528 256 -528 128
WIRE -528 416 -528 336
WIRE -496 64 -576 64
WIRE -496 128 -528 128
WIRE -256 192 -272 192
WIRE -256 224 -272 224
WIRE -256 256 -272 256
WIRE -240 192 -256 192
WIRE -240 224 -256 224
WIRE -240 256 -256 256
WIRE -224 288 -272 288
WIRE -224 432 -576 432
WIRE -224 432 -224 288
WIRE 0 416 -528 416
WIRE 0 416 0 320
WIRE 0 432 0 416
WIRE 32 128 0 128
WIRE 32 192 0 192
WIRE 32 256 0 256
WIRE 32 320 0 320
WIRE 176 112 160 112
WIRE 176 144 160 144
WIRE 176 176 160 176
WIRE 176 208 160 208
WIRE 176 240 160 240
WIRE 176 272 160 272
WIRE 176 304 160 304
WIRE 176 336 160 336
FLAG 0 432 0
FLAG -256 192 A
FLAG -256 224 B
FLAG -256 256 C
FLAG 0 128 A
FLAG 0 192 B
FLAG 0 256 C
SYMBOL 3to8l 80 48 R0
WINDOW 0 -26 47 Left 0
SYMATTR InstName U1
SYMATTR SpiceLine VDD={Vdd}  SPEED=1.0  TRIPDT=5e-9
SYMBOL Dig_Add\\CD4xxx\\CD4024B -384 0 R0
WINDOW 0 42 78 Left 0
WINDOW 3 -30 49 Left 0
SYMATTR InstName U2
SYMATTR SpiceLine VDD={Vdd}  SPEED=1.0  TRIPDT=5e-9
SYMBOL voltage -528 240 R0
WINDOW 0 -23 58 Left 0
WINDOW 3 -69 -193 VRight 0
WINDOW 123 0 0 Left 0
SYMATTR InstName Vclk
SYMATTR Value PULSE(0 {Vdd} 0 .1u .1u 50u 100u)
SYMATTR SpiceLine Rser=1
TEXT -200 384 Left 0 !.Param Vdd=15
TEXT 54 400 Left 0 !.tran .8m