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HD74ACT139 - Dual 1-of-4 Decoder/Demultiplexer

Datasheet Summary

Description

The HD74AC139/HD74ACT139 is a high-speed, dual 1-of-4 decoder/demultiplexer.

The device has two independent decoders, each accepting two inputs and providing four mutually-exclusive active-Low outputs.

Features

  • Multifunction Capability Two Completely Independent 1-of-4 Decoders Active Low Mutually Exclusive Outputs Outputs Source/Sink 24 mA HD74ACT139 has TTL-Compatible Inputs HD74AC139/HD74ACT139 Pin Arrangement Ea 1 A0a 2 A1a 3 O0a 4 O1a 5 O2a 6 O3a 7 GND 8 (Top view) 16 VCC 15 Eb 14 A0b 13 A1b 12 O0b 11 O1b 10 O2b 9 O3b Logic Symbol E A0 A1 E A0 A1.

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Datasheet preview – HD74ACT139

Datasheet Details

Part number HD74ACT139
Manufacturer Hitachi Semiconductor
File Size 61.14 KB
Description Dual 1-of-4 Decoder/Demultiplexer
Datasheet download datasheet HD74ACT139 Datasheet
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Full PDF Text Transcription

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HD74AC139/HD74ACT139 Dual 1-of-4 Decoder/Demultiplexer Description The HD74AC139/HD74ACT139 is a high-speed, dual 1-of-4 decoder/demultiplexer. The device has two independent decoders, each accepting two inputs and providing four mutually-exclusive active-Low outputs. Each decoder has an active-Low Enable input which can be used as a data input for a 4-output demultiplexer. Each half of the HD74AC139/HD74ACT139 can be used as a function generator providing all four minterms of two variables.
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