Physics — Logic: 2-to-4 line decoder
Two address lines activate one of four outputs.
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title "2-to-4 line decoder"
type gates
input A0 at (0,0)
input A1 at (0,4)
gate NOT N0 at (2,0)
gate NOT N1 at (2,4)
gate AND G0 at (5,0)
gate AND G1 at (5,1.5)
gate AND G2 at (5,3)
gate AND G3 at (5,4.5)
output Y0 at (8,0)
output Y1 at (8,1.5)
output Y2 at (8,3)
output Y3 at (8,4.5)
wire A0 N0
wire A1 N1
wire N0 G0
wire N1 G0
wire A0 G1
wire N1 G1
wire N0 G2
wire A1 G2
wire A0 G3
wire A1 G3
wire G0 Y0
wire G1 Y1
wire G2 Y2
wire G3 Y3