HD74LVC139 Datasheet, PDF (1/7 Pages) Hitachi Semiconductor – Dual 2-to-4-line Decoders / Demultiplexers

HD74LVC139
Dual 2-to-4-line Decoders / Demultiplexers
ADE-205-069B(Z)
Rev.2
September 1995
Description
The HD74LVC139 has two independent two-to-four-line decoders each with a single active low enable
input in a 16 pin package. Data on the select inputs cause one of the four normally high outputs to go low.
Low voltage and high speed operation is suitable at the battery drive product (note type personal computer)
and low power consumption extends the life of a battery for long time operation.
Features
• V_CC = 2.0 V to 5.5 V
• All inputs V_IH (Max.) = 5.5 V (@V_CC = 0 V to 5.5 V)
• Typical V_OL ground bounce < 0.8 V (@V_CC = 3.3 V, Ta = 25°C)
• Typical V_OH undershoot > 2.0 V (@V_CC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@V_CC = 3.0 V to 5.5 V)
Function Table
Input
Enable
Select
G
B
A
H
X
X
L
L
L
L
L
H
L
H
L
L
H
H
H : High level
L : Low level
X : Immaterial
Outputs
Y₀
Y₁
Y₂
Y₃
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L