What is 74HC138?


This is 3-to-8 line decoder/demultiplexer inverting.

A demultiplexer, also known as a "demux," is a digital circuit that takes a single input signal and directs it to one of several possible outputs. It is essentially the reverse of a multiplexer, which takes multiple inputs and directs them to a single output.


[PDF] Complete Technical Details can be found in the 74HC138 datasheet provided at this page.

Summary in PDF File


INTEGRATED CIRCUITS DATA SHEET For a complete data sheet please also download The IC06 74HC HCT HCU HCMOS Logic Family Specifications The IC06 74HC HCT HCU HCMOS Logic Package Information The IC06 74HC HCT HCU HCMOS Logic Package Outlines 74HC HCT138 3 to 8 line decoder demultiplexer inverting Product speci cation File under Integrated Circuits IC06 September 1993 Philips Semiconductors Product speci cation 3 to 8 line decoder demultiplexer inverting FEATURES Demultiplexing capability Multiple input enable for easy expansion Ideal for memory chip select decoding Active LOW mutually exclusive outputs Output capability standard ICC category MSI GENERAL DESCRIPTION The 74HC HCT138 are high speed Si gate CMOS devices and are pin compatible with low power Schottky TTL LSTTL They are specified in compliance with JEDEC standard no 7A 74HC HCT138 The 74HC HCT138 decoders accept three binary weighted address inputs A0 A1 A2 and when enabled provide 8 mutually exclusive active LOW outputs Y0 to Y7 The 138 features three enable inputs two active LOW E1 and E2 and one active HIGH E3 Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH This multiple enable function allows easy para

Datasheet Download (PDF)


[ Detailed Data ]


The basic design of a demultiplexer involves using a set of logic gates to decode the control signals and direct the input signal to the selected output channel. The input signal is usually passed through a series of AND gates, with each gate corresponding to one of the possible output channels. The control signals are used to enable the appropriate AND gate, while the other gates are disabled.

Manufacturers : Philips

PHILIPS - 74HC138 Datasheet PDF

PHILIPS 74HC138 MULTIPLEXER

3-to-8 line decoder/demultiplexer inverting

More Search







Datasheet 74HC138.PDF DownLoad ( PHILIPS )


[ Home ]