Product Overview

Product Overview
MC74HC138A: 1-of-8 Decoder/Demultiplexer
For complete documentation, see the data sheet
Product Description
The MC74HC138A is identical in pinout to the LS138. The device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs. The HC138A decodes a three bit Address to one of eight active low outputs. This
device features three Chip Select inputs, two active low and one active high to facilitate the demultiplexing, cascading, and chip
selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one
of the Chip Selects is used as a data input while the other Chip Selects are held in their active states.
Features
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Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 <FONT FACE=SYMBOL>m</FONT>A
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard No. 7A
Chip Complexity: 100 FETs or 29 Equivalent Gates
Pb-Free Packages are Available*
Part Electrical Specifications
Product
Compliance
Status
Channels
VCC Min (V)
VCC Max (V)
tpd Max (ns)
IO Max (mA)
Package Type
MC74HC138ADG
Pb-free
Active
1
2
6
19
5.2
SOIC-16
Active
1
2
6
19
5.2
SOIC-16
Active
1
2
6
19
5.2
TSSOP-16
Active
1
2
6
27
4
SOIC-16
Active
1
2
6
27
4
TSSOP-16
Halide free
MC74HC138ADR2G
Pb-free
Halide free
MC74HC138ADTR2G
Pb-free
Halide free
NLV74HC138ADR2G
AEC
Qualified
PPAP
Capable
Pb-free
Halide free
NLV74HC138ADTR2
G
AEC
Qualified
PPAP
Capable
Pb-free
Halide free
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Created on: 6/30/2016