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74ACT138MTR View Datasheet(PDF) - STMicroelectronics

Part Name
Description
View to exact match
74ACT138MTR
ST-Microelectronics
STMicroelectronics ST-Microelectronics
74ACT138MTR Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
74ACT138
INPUT AND OUTPUT EQUIVALENT CIRCUIT
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
NAME AND FUNCTION
Address Inputs
Enable Inputs
Enable Input
Outputs
GND
VCC
Ground (0V)
Positive Supply Voltage
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
LOGIC DIAGRAM
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
This logic diagram has not be used to estimate propagation delays
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