74HC151 Philips, 74HC151 Datasheet - Page 4

• Manufacturer Part Number: 74HC151
• Description: 8-input multiplexer
• Manufacturer: Philips

Philips Semiconductors
FUNCTION TABLE
Notes
1. H = HIGH voltage level
December 1990
8-input multiplexer
E
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L = LOW voltage level
X = don’t care.
Fig.4 Functional diagram.
S
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
2
S
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
1
S
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
0
I
X
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
0
I
X
X
X
H
X
X
X
X
X
X
X
X
X
X
X
X
L
INPUTS
1
I
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
2
4
I
X
X
X
X
X
X
X
H
X
X
X
X
X
X
X
X
L
3
Fig.5 Logic diagram.
I
X
X
X
X
X
X
X
X
X
H
X
X
X
X
X
X
L
4
I
X
X
X
X
X
X
X
X
X
X
X
H
X
X
X
X
L
5
H
I
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
6
74HC/HCT151
H
I
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
7
Product specification
OUTPUTS
Y
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
Y
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L