Version 4
SHEET 1 880 680
WIRE 80 112 32 112
WIRE -80 144 -80 112
WIRE -64 176 -256 176
WIRE 80 192 48 192
WIRE -144 208 -160 208
WIRE -64 208 -144 208
WIRE -256 224 -256 176
WIRE -160 224 -160 208
WIRE -80 224 -80 144
WIRE -256 336 -256 304
WIRE -208 336 -256 336
WIRE -160 336 -160 304
WIRE -160 336 -208 336
WIRE -80 336 -80 304
WIRE -80 336 -160 336
WIRE -208 400 -208 336
FLAG 80 192 out1
FLAG -208 400 0
FLAG 80 112 out2
FLAG -144 208 in1
FLAG -80 144 in2
SYMBOL Dig_Add\\CD4xxx\\CD4011B -16 128 R0
WINDOW 3 26 40 Left 0
SYMATTR InstName U1
SYMATTR SpiceLine VDD={Vcc} SPEED=1.0  TRIPDT=5e-9
SYMBOL voltage -80 208 R0
WINDOW 0 -19 59 Left 0
WINDOW 3 34 103 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 35 75 Left 0
SYMATTR InstName Vin1
SYMATTR Value SINE({Vcc/2} {.400068*Vcc/5} 1e2)
SYMATTR SpiceLine Rser=1k
SYMBOL voltage -256 208 R0
WINDOW 0 10 8 Left 0
WINDOW 3 -31 57 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 7 103 Left 0
SYMATTR InstName V1
SYMATTR Value {Vcc}
SYMATTR SpiceLine Rser=1
SYMBOL Dig_Add\\CD4xxx\\cd40106b -32 64 R0
WINDOW 3 31 27 Left 0
WINDOW 0 -51 29 Left 0
SYMATTR InstName U2
SYMATTR SpiceLine VDD={Vcc} SPEED=1.0  TRIPDT=5e-9
SYMBOL voltage -160 208 R0
WINDOW 0 -25 58 Left 0
WINDOW 3 -32 176 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -30 152 Left 0
SYMATTR InstName Vin0
SYMATTR Value SINE({Vcc/2} {.1u+25u*Vcc/5} 1e2)
SYMATTR SpiceLine Rser=1k
TEXT -280 96 Left 0 !.Tran 100m
TEXT -280 128 Left 0 !.Param Vcc 15