MC74AC139, MC74ACT139 Datasheet - ON Semiconductor

MC74AC139 Dual 1-of-4 Decoder/Demultiplexer

The MC74AC139/74ACT139 is a high *speed dual 1 *of *4 decoder/demultiplexer. The device has two independent decoders, each of which accepts two binary weighted inputs (A0 *A1) and provides four mutually exclusive active *LOW outputs (O0 *O3). Each decoder ha.

MC74AC139, MC74ACT139 Dual 1-of-4 Decoder/Demultiplexer The MC74AC139/74ACT139 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 MC74AC139/74ACT139 can be used as a function generator providi.

MC74AC139 Features

* Multifunctional Capability

* Two Completely Independent 1

* of

* 4 Decoders

* Active LOW Mutually Exclusive Outputs

* Outputs Source/Sink 24 mA

* ′ACT139 Has TTL Compatible Inputs

* These are Pb

* Free Devices VCC Eb A0b A1b O0b O1b

MC74ACT139_ONSemiconductor.pdf