Datasheet

December 1990 4
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer 74HC/HCT4051
Fig.4 Functional diagram.
APPLICATIONS
• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing
• Signal gating
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
INPUTS
channel
ON
ES
2
S
1
S
0
L
L
L
L
L
L
L
L
L
L
H
H
L
H
L
H
Y
0
−Z
Y
1
−Z
Y
2
−Z
Y
3
−Z
L
L
L
L
H
H
H
H
L
L
H
H
L
H
L
H
Y
4
−Z
Y
5
−Z
Y
6
−Z
Y
7
−Z
H X X X none
Fig.5 Schematic diagram (one switch).