4051 - 8-channel analog multiplexer/demultiplexer

symbol

www.NanoBob.com 11 S0 10 S1 9 S2 6 E 3 Z 13 Y0 14 Y1 15 Y2 12 Y3 1 Y4 5 Y5 2 Y6 4 Y7

description

Z : analog common pin

Yn : analog pin

S2,S1,S0 : switch selector

E : enable

function table

ES2S1S0 connection
1XXX none
0000 Z ↔ Y0
0001 Z ↔ Y1
0010 Z ↔ Y2
0011 Z ↔ Y3
0100 Z ↔ Y4
0101 Z ↔ Y5
0110 Z ↔ Y6
0111 Z ↔ Y7

pin types

0 digital input (inverted) 0 digital output (inverted) 0 digital input-output (bidir) 0 analog (input or output) 0 positive power 0 ground 0 negative power