MC74LCX157_12 Datasheet, PDF (2/7 Pages) ON Semiconductor – Low-Voltage CMOS Quad 2-Input Multiplexer

MC74LCX157
V_CC E I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
12345678
S I0a I1a Za I0b I1b Zb GND
Figure 1. 16−Lead Pinout (Top View)
PIN NAMES
Pins
I0n
I1n
E
S
Zn
Function
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
1
S
15
E
I0a ²
I1a ³
5
I0b
6
I1b
I0c ¹⁴
13
I1c
11
I0d
10
I1d
Figure 2. Logic Diagram
4
Za
7
Zb
12
Zc
9
Zd
TRUTH TABLE
Inputs
Outputs
E
S
I0n
I1n
Zn
H
X
X
X
L
L
H
X
L
L
L
H
X
H
H
L
L
L
X
L
L
L
H
X
H
H = High Voltage Level; L = Low Voltage Level; X = High or Low Voltage Level ; For I_CC Reasons DO
NOT FLOAT Inputs
http://onsemi.com
2