Version 4
SHEET 1 1308 788
WIRE -112 -48 -176 -48
WIRE -80 -48 -112 -48
WIRE 224 48 224 -16
WIRE -32 96 -160 96
WIRE 48 96 -32 96
WIRE -64 128 -160 128
WIRE 48 128 -64 128
WIRE 464 128 400 128
WIRE -112 160 -160 160
WIRE 48 160 -112 160
WIRE 224 320 224 48
WIRE -32 368 -32 96
WIRE 48 368 -32 368
WIRE 448 384 448 336
WIRE -64 400 -64 128
WIRE 48 400 -64 400
WIRE 432 400 400 400
WIRE 608 400 480 400
WIRE 224 480 224 320
WIRE -64 528 -64 400
WIRE 48 528 -64 528
WIRE 608 528 608 400
WIRE 672 528 608 528
WIRE 448 544 448 384
WIRE -112 560 -112 160
WIRE 48 560 -112 560
WIRE 432 560 400 560
WIRE 672 560 480 560
WIRE 1056 560 1024 560
WIRE 1184 560 1104 560
WIRE 672 592 608 592
WIRE 224 656 224 480
WIRE -32 704 -32 368
WIRE 48 704 -32 704
WIRE 448 720 448 544
WIRE -112 736 -112 560
WIRE 48 736 -112 736
WIRE 432 736 400 736
WIRE 608 736 608 592
WIRE 608 736 480 736
FLAG 1184 560 Carry
IOPIN 1184 560 Out
FLAG 464 128 Sum
IOPIN 464 128 Out
FLAG 848 480 VDD
FLAG 224 -16 VDD
FLAG 448 336 VDD
FLAG 1072 544 VDD
FLAG -160 96 A
IOPIN -160 96 In
FLAG -160 128 B
IOPIN -160 128 In
FLAG -160 160 C
IOPIN -160 160 In
FLAG -176 -48 VDD
IOPIN -176 -48 In
FLAG -112 -48 VDD
SYMBOL Ideal_XOR_3 0 144 R0
SYMATTR InstName X1
SYMBOL Ideal_NAND_2 0 416 R0
SYMATTR InstName X2
SYMBOL Ideal_NAND_2 0 576 R0
SYMATTR InstName X3
SYMBOL Ideal_NAND_2 0 752 R0
SYMATTR InstName X4
SYMBOL inverter 432 400 R0
SYMATTR InstName X5
SYMBOL inverter 432 560 R0
SYMATTR InstName X6
SYMBOL inverter 432 736 R0
SYMATTR InstName X7
SYMBOL Ideal_NOR_3 624 576 R0
SYMATTR InstName X8
SYMBOL inverter 1056 560 R0
SYMATTR InstName X9