SN74HCT138D - Texas Instruments

Manufacturer Part Number

SN74HCT138D

Manufacturer

Texas Instruments

Introduction

The SN74HCT138D from Texas Instruments is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL).

Product Features and Performance

Decoder/Demultiplexer functionality

1 x 3:8 circuit configuration

Single 1-of-8 decoding or demultiplexing

Outputs can drive up to 10 LSTTL loads

Product Advantages

Optimized for directly driving TTL levels

High noise immunity characteristic of CMOS devices

Output current of 4mA on both high and low sides for better driving capabilities

Key Technical Parameters

Independent Circuits: 1

Current Output High, Low: 4mA, 4mA

Voltage Supply Source: Single Supply

Voltage Supply Range: 4.5V to 5.5V

Operating Temperature Range: -40°C to 85°C

Quality and Safety Features

Input levels for significant power reduction and to ensure high noise immunity during TTL-level mode operations

Compatibility

Pin compatible with LSTTL products

Application Areas

Ideally suited for implementing non-inverting 3-to-8 decoders, 3-line to 8-line decoders, and as 3-bit binary counters

Product Lifecycle

Discontinued at Digi-Key indicating the model may be at the end of its production lifecycle

Customers should verify availability of replacements or consider latest product offerings for upgrades

Key Reasons to Choose This Product

Reliable performance and compatibility with TTL levels make it a suitable choice for various decoding applications

Support for single supply voltage simplifies system design

Operating temperature range suitable for industrial environments

Texas Instruments' reputation for quality and robustness in semiconductor manufacturing