tc74act157 TOSHIBA Semiconductor CORPORATION, tc74act157 Datasheet - Page 2

• Manufacturer Part Number: tc74act157
• Description: Quad 2-channel Multiplexer
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin Assignment
Truth Table
X: Don’t care
ST
SELECT
H
L
L
L
L
GND
1A
1B
1Y
2A
2B
2Y
SELECT
1
2
3
4
5
6
7
8
X
H
H
L
L
Inputs
(top view)
A S G
B
Y
A
B
Y
Y
A
X
H
X
X
L
A
B
Y
A
B
H
B
X
X
X
L
16
15
14
13
12
11
10
9
Output
V
4A
4B
4Y
3A
3B
3Y
ST
CC
Y
H
H
L
L
L
2
SELECT
IEC Logic Symbol
ST
1A
1B
2A
2B
3A
3B
4A
4B
(15)
(11)
(10)
(14)
(13)
(1)
(2)
(3)
(5)
(6)
EN
G1
1
1 MUX
TC74ACT157P/F/FN/FT
(12)
(4)
(7)
(9)
2007-10-01
1Y
2Y
3Y
4Y