Version 4
SHEET 1 880 692
WIRE -32 -224 -528 -224
WIRE -32 -192 -384 -192
WIRE -32 -160 -256 -160
WIRE 16 -112 -80 -112
WIRE -32 16 -496 16
WIRE -32 48 -352 48
WIRE -32 80 -224 80
WIRE -80 128 -80 -112
WIRE 16 128 -80 128
WIRE -32 272 -464 272
WIRE -32 304 -320 304
WIRE -32 336 -192 336
WIRE -80 384 -80 128
WIRE 16 384 -80 384
WIRE -528 464 -528 -224
WIRE -496 464 -496 16
WIRE -464 464 -464 272
WIRE -384 464 -384 -192
WIRE -352 464 -352 48
WIRE -320 464 -320 304
WIRE -256 464 -256 -160
WIRE -224 464 -224 80
WIRE -192 464 -192 336
WIRE -80 464 -80 384
FLAG 80 -192 QA
IOPIN 80 -192 Out
FLAG 80 48 QB
IOPIN 80 48 Out
FLAG 80 304 QC
IOPIN 80 304 Out
FLAG -528 464 IiA
IOPIN -528 464 In
FLAG -496 464 IiB
IOPIN -496 464 In
FLAG -464 464 IiC
IOPIN -464 464 In
FLAG -384 464 I0A
IOPIN -384 464 In
FLAG -352 464 I0B
IOPIN -352 464 In
FLAG -320 464 I0C
IOPIN -320 464 In
FLAG -256 464 I1A
IOPIN -256 464 In
FLAG -224 464 I1B
IOPIN -224 464 In
FLAG -192 464 I1C
IOPIN -192 464 In
FLAG -80 464 S
IOPIN -80 464 In
SYMBOL mux3-1 32 -224 R0
SYMATTR InstName Xmux1
SYMBOL mux3-1 32 16 R0
SYMATTR InstName Xmux2
SYMBOL mux3-1 32 272 R0
SYMATTR InstName Xmux3
TEXT -520 -288 Left 0 ;9:3 multiplexer\nSelect from one of three groups of 3 trits
TEXT -848 -104 Left 0 ;Note: this is inefficient; the 1:3 decoder circuitry is redundant in each\nof the 3:1 multiplexers. For efficiency, this circuit should be made from\na 1:3 decoder and 3 groups of 3 transmission gates. See alu.asc for\nan example of how to do this.
