HD74AC139 Datasheet - Hitachi Semiconductor

HD74AC139 Dual 1-of-4 Decoder/Demultiplexer

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 demul.

HD74AC139 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 G

HD74AC139_HitachiSemiconductor.pdf