SL74HCT139 Datasheet (System Logic Semiconductor) - Dual 1-of-4 Decoder/Demultiplexer

SL74HCT139, Dual 1-of-4 Decoder/Demultiplexer

SL74HCT139 Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The SL74HCT139A is identical in pinout to the LS/ALS139.

The SL74HCT139A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.

This device consists of two independent 1-of-4 decoders, each of which decodes a two-bit Address to one-of-four active-low outputs.

Active-low Selects are provided to facilitate the demultiplexing and cascading functions.

The demultiplexing function