HD74LV139A Datasheet, PDF (1/12 Pages) Hitachi Semiconductor – Dual 2-to-4 line Decoder / Demultiplexers

HD74LV139A
Dual 2-to-4 line Decoder / Demultiplexers
ADE-205-262 (Z)
1st Edition
March 1999
Description
The HD74LV139A is designed to be used in high-performance memory-decoding or data-routing
applications requiring very short propagation delay times. The active-low enable input can be used as a
data line in demultiplexing applications.
This decoder/demultiplexer features fully buffered inputs, each of which represents only one normalized
load to its driving circuit.
Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook
computers), and the low-power consumption extends the battery life.
Features
• V_CC = 2.0 V to 5.5 V operation
• All inputs V_IH (Max.) = 5.5 V (@V_CC = 0 V to 5.5 V)
• All outputs V_O (Max.) = 5.5 V (@V_CC = 0 V)
• Typical V_OL ground bounce < 0.8 V (@V_CC = 3.3 V, Ta = 25°C)
• Typical V_OH undershoot > 2.3 V (@V_CC = 3.3 V, Ta = 25°C)
• Output current ±6 mA (@V_CC = 3.0 V to 3.6 V), ±12 mA (@V_CC = 4.5 V to 5.5 V)
Function Table
Inputs
Select
G1
B
A
H
X
X
L
L
L
L
L
H
L
H
L
L
H
H
Note: 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