Product Summary

The 74HC/HCT139 are high-speed Si-gate CMOS devicesand are pin compatible with low power Schottky TTL(LSTTL). It is specified in compliance with JEDECstandard no. 7A.The 74HC/HCT139 are high-speed, dual 2-to-4 linedecoder/multiplexers. This device has two independentdecoders, each accepting two binary weighted inputs(nA0 and nA1) and providing four mutually exclusive activeLOW outputs (nY0 to nY3). Each decoder has an activeLOW enable input (nE).When nE is HIGH, every output is forced HIGH. Theenable can be used as the data input for a 1-to-4demultiplexer application.The “139” is identical to the HEF4556 of the HE4000Bfamily.

Features

(1)Demultiplexing capability; (2)Two independent 2-to-4 decoders; (3)Multifunction capability; (4)Active LOW mutually exclusive outputs; (5)Output capability: standard; (6)ICC category: MSI

Diagrams

<IMG border=0 src="http://www.seekic.com/uploadfile/ic-mfg/201272045850746.jpg">

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
74HC139D
74HC139D

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers 2-4 LINE DCOD/DMUX DUAL

Data Sheet

Negotiable 
74HC139D,652
74HC139D,652

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers 2-4 LINE DCOD/DMUX

Data Sheet

0-1: $0.07
1-25: $0.07
25-100: $0.07
100-250: $0.06
74HC139D,653
74HC139D,653

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers DUAL 2-4 LINE DECODER/DEMUX

Data Sheet

0-1: $0.14
1-25: $0.11
25-100: $0.10
100-250: $0.08
74HC139DB,118
74HC139DB,118

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers DUAL 2-4 LINE

Data Sheet

0-1: $0.37
1-25: $0.32
25-100: $0.27
100-250: $0.24
74HC139DB,112
74HC139DB,112

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers DUAL 2-4 LINE

Data Sheet

0-1: $0.37
1-25: $0.32
25-100: $0.27
100-250: $0.24
74HC139DB
74HC139DB

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers DUAL 2-4 LINE DECODER/DEMUX

Data Sheet

Negotiable 
74HC139DB-T
74HC139DB-T

NXP Semiconductors

Encoders, Decoders, Multiplexers & Demultiplexers DUAL 2-4 LINE DECODER/DEMUX

Data Sheet

Negotiable