Texas Instruments

SN74AHCT138N  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74AHCT138N Description

The SN74AHCT138N is a high-performance decoder/demultiplexer integrated circuit designed for a wide range of digital applications. Manufactured by Texas Instruments, this logic IC chip is part of the 74AHCT series, known for its robust performance and reliability. The SN74AHCT138N features a 16-pin DIP package and is designed for through-hole mounting, making it suitable for both prototyping and production environments.

This IC operates on a single supply voltage ranging from 4.5V to 5.5V, ensuring compatibility with standard digital systems. It provides a 3:8 decoding function, converting three binary inputs into eight distinct outputs. The SN74AHCT138N is equipped with independent circuits, allowing for versatile and efficient signal processing. With a current output capability of 8mA for both high and low states, this IC can drive multiple loads effectively.

SN74AHCT138N Features

• High-Performance Decoding: The SN74AHCT138N offers a 3:8 decoding function, enabling efficient conversion of three binary inputs into eight outputs. This feature is crucial for applications requiring signal expansion and control.
• Single Supply Operation: Designed to operate on a single supply voltage between 4.5V and 5.5V, this IC simplifies power supply requirements and enhances system reliability.
• Through-Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into various electronic systems.
• Robust Output Current Capability: With an output current of 8mA for both high and low states, the SN74AHCT138N can drive multiple loads effectively, making it suitable for a wide range of applications.
• Compliance and Safety: The SN74AHCT138N is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. This compliance makes it suitable for use in various industries, including automotive and consumer electronics.
• Active Product Status: As an active product, the SN74AHCT138N is readily available and supported by Texas Instruments, ensuring long-term availability and technical support.

SN74AHCT138N Applications

The SN74AHCT138N is ideal for a variety of applications where signal decoding and demultiplexing are required. Some specific use cases include:

• Digital Systems: Used in digital systems for expanding control signals and managing multiple outputs from a limited number of input lines.
• Microcontroller Interfaces: Enhances the functionality of microcontrollers by providing additional output lines for peripheral control.
• Memory Address Decoding: Utilized in memory systems to decode address lines, enabling access to specific memory locations.
• Control Systems: Ideal for control systems where multiple outputs need to be driven based on a few input signals, such as in industrial automation and robotics.
• Consumer Electronics: Applied in consumer electronics for signal routing and control, enhancing the performance and functionality of devices.

Conclusion of SN74AHCT138N

The SN74AHCT138N stands out as a versatile and reliable decoder/demultiplexer IC, offering a range of features that make it suitable for various digital applications. Its robust performance, single supply operation, and high output current capability ensure efficient and reliable signal processing. The through-hole mounting type and compliance with environmental and safety standards further enhance its appeal in the electronics industry. Whether used in digital systems, microcontroller interfaces, or consumer electronics, the SN74AHCT138N provides a reliable and efficient solution for signal decoding and demultiplexing needs.

SN74AHCT138N Documents

Download datasheets and manufacturer documentation for SN74AHCT138N

Datasheets :

SN54/74AHCT138      

HTML Datasheet :

SN54/74AHCT138      

PCN Design/Specification :

Copper Bond Wire Revision A 04/Dec/2013       Material Set 30/Mar/2017