74AHCT138 View Datasheet(PDF) - Diodes Incorporated.
Part Name
Description
Manufacturer
74AHCT138 Datasheet PDF : 9 Pages
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Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
A0
A1
A2
E1
E2
E3
Y7
GND
Y6
Y5
Y4
Y3
Y2
Y1
Y0
VCC
Description
Address Input 0
Address Input 1
Address Input 2
Enable Input 1 (active LOW)
Enable Input 2 (active LOW)
Enable Input 3 (active HIGH)
Output 7 (active LOW)
Ground
Output 6 (active LOW)
Output 5 (active LOW)
Output 4 (active LOW)
Output 3 (active LOW)
Output 2 (active LOW)
Output 1 (active LOW)
Output o (active LOW)
Supply Voltage
74AHCT138
Function Table Diagram
Control
Input
Output
E1
E2
E3
A2
A1
A0
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
H
X
X
X
X
X
H
H
H
H
H
H
H
H
X
H
X
X
X
L
L
L
H
L
L
L
H
H
H
H
H
H
H
L
L
L
H
H
H
H
H
H
H
L
H
L
H
L
H
H
H
H
H
L
H
H
L
H
H
H
H
H
H
L
H
H
H
H
L
L
H
H
H
L
H
H
H
H
H
L
H
H
H
L
H
H
H
H
H
H
H
L
H
L
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
74AHCT138
Document number: DS35483 Rev. 2 - 2
2 of 9
www.diodes.com
June 2013
© Diodes Incorporated
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