74hct157db NXP Semiconductors, 74hct157db Datasheet - Page 4

• Manufacturer Part Number: 74hct157db
• Description: Quad 2-input Multiplexer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
December 1990
Quad 2-input multiplexer
Fig.4 Functional diagram.
Fig.5 Logic diagram.
4
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
H
E
L
L
L
L
S
X
H
H
L
L
INPUTS
nI
X
H
X
X
L
0
74HC/HCT157
nI
H
X
X
X
L
1
Product specification
OUTPUT
nY
H
H
L
L
L