M74HCT139 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M74HCT139 Datasheet PDF : 9 Pages
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M74HCT139
INPUT AND OUTPUT EQUIVALENT CIRCUIT
LOGIC DIAGRAM
PIN DESCRIPTION
PIN No
SYMBOL NAME AND FUNCTION
1, 15
2, 3
4, 5, 6, 7
12, 11, 10, 9
14, 13
8
16
1G, 2G
1A, 1B
1Y0 TO 1Y3
2Y0 TO 2Y3
2A, 2B
GND
VCC
Enable Inputs
Address Inputs
Outputs
Outputs
Address Inputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
ENABLE SELECT
G
BA
OUTPUTS
Y0 Y1 Y2 Y3
SELECTED
OUTPUT
H
X X H H H H NONE
L
L L L HHH
Y0
L
L HH L HH
Y1
L
H L HH L H
Y2
L
HHHHH L
Y3
This logic diagram has not be used to estimate propagation delays
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