74HC138 Datasheet PDF – 3-to-8 Line Decoder/Demultiplexer

Part Number: 74HC138

Function: 3-to-8 line Decoder / Demultiplexer, Inverting

Package: DIP, SMD 16 Pin

Manufacturer: Philips Semicondcutor

Image

74hc138-decoder


Description:

A 3-to-8 line decoder/demultiplexer is a digital logic component that takes a binary input and selects one of the eight output lines based on the input value.

The 74HCT138, 74HC138 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. The 74HC138 / 74HCT138 decoders accept three binary weighted address inputs (A0, A1, A2) and when enabled, provide 8 mutually exclusive active LOW outputs (Y0 to Y7).

Pinout

74hc138-arduino-functional-diagram

Features:

1. Demultiplexing capability

2. Multiple input enable for easy expansion

3. Ideal for memory chip select decoding

4. Active LOW mutually exclusive outputs

5. Output capability: standard

6. ICC category: MSI

Functional Diagram:

74hc138-datasheet-pinout

 

Reference site

  1. https://learn.adafruit.com/delorean-time-circuit/circuit-trickery

 

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Other data sheets are available within the file:

74HC138D, 74HCT138D, 74HC138PW, 74HCT138PW, 74HC138BQ, 74HCT138BQ

 

74HC138 Datasheet PDF

 

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