HD74LS139 Datasheet, PDF (2/7 Pages) Hitachi Semiconductor – Dual 2-line-to-4-line Decoders/Demultiplexers

HD74LS139
Function Table
Enable
Inputs
Select
Outputs
G
B
A
Y₀
Y₁
Y₂
Y₃
H
X
X
H
H
H
H
L
L
L
L
H
H
H
L
L
H
H
L
H
H
L
H
L
H
H
L
H
L
H
H
H
H
H
L
H ; high level, L ; low level, X ; irrelevant
Block Diagram
Enable 1G
Select 1A
Inputs _1B
Enable 2G
Select 2A
Inputs _2B
1Y0
1Y1
1Y2
1Y3
Data
Outputs
2Y0
2Y1
2Y2
2Y3
Absolute Maximum Ratings
Item
Symbol
Ratings
Supply voltage
V_CC
7
Input voltage
V_IN
7
Power dissipation
P_T
400
Storage temperature
Tstg
–65 to +150
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Symbol
V_CC
I_OH
I_OL
Topr
Min
4.75
—
—
–20
Typ
5.00
—
—
25
Max
5.25
–400
8
75
Unit
V
V
mW
°C
Unit
V
µA
mA
°C
Rev.2.00, Feb.18.2005, page 2 of 6