M54HC138 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M54HC138 Datasheet PDF : 10 Pages
| |||
M54/M74HC138
TRUTH TABLE
INPUTS
ENABLE
SELECT
G2B G2A G1
C
B
A
X
X
L
X
X
X
X
H
X
X
X
X
H
X
X
X
X
X
L
L
H
L
L
L
L
L
H
L
L
H
L
L
H
L
H
L
L
L
H
L
H
H
L
L
H
H
L
L
L
L
H
H
L
H
L
L
H
H
H
L
L
L
H
H
H
H
X: Don’t Care
OUTPUTS
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
PIN DESCRIPTION
PIN No
1, 2, 3
4, 5
6
15, 14, 13,
12, 11, 10,
9, 7
8
16
SYMBOL
A, B, C
G2A, G2B
G1
Y0 to Y7
GND
VCC
NAME AND FUNCTION
Address Inputs
Enable Inputs
Enable Input
Outputs
Ground (0V)
Positive Supply Voltage
IEC LOGIC SYMBOL
LOGIC DIAGRAM
2/10
Share Link: 