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

Part Number : 74HC138

Description : 3-to-8 line decoder/demultiplexer inverting

Package : DIP, SMD 16 Pin

Manufactures : Philips

Image

74hc138-decoder
Description

The 74HC138 / 74HCT138 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 Diagram74hc138-datasheet-pinout

 

Reference site

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

74HC138 Datasheet