Datasheet4U Logo Datasheet4U.com

74ACT139 - DUAL 1-OF-4 DECODER/DEMULTIPLEXER

General 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.

Key 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
74ACT139 Dual 1-of-4 Decoder/Demultiplexer Hitachi Semiconductor
74ACT139 Dual 1-of-4 Decoder/Demultiplexer Fairchild Semiconductor
74ACT138 3 TO 8 LINE DECODER INVERTING STMicroelectronics
74ACT138 Dual 1-of-8 Decoder/Demultiplexer ON Semiconductor
74ACT10 TRIPLE 3-INPUT NAND GATE STMicroelectronics

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
74ACT521 8-BIT IDENTITY COMPARATOR
74AC00 QUAD 2-INPUT NAND GATE
74AC175 QUAD D FLIP-FLOP
74AC374 OCTAL D-TYPE FLIP-FLOP

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.