Texas Instruments

SN74AHCT138PWRG4  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74AHCT138PWRG4 Description

The SN74AHCT138PWRG4 is a 1 x 3:8 decoder/demultiplexer IC designed by Texas Instruments, a leading manufacturer in the semiconductor industry. This logic IC chip is part of the 74AHCT series and is housed in a 16-TSSOP package, making it suitable for surface mount applications. The device operates on a single supply voltage ranging from 4.5V to 5.5V, providing robust performance in various electronic circuits.

SN74AHCT138PWRG4 Features

• Circuit Configuration: The SN74AHCT138PWRG4 features a 1 x 3:8 decoder/demultiplexer circuit, enabling the conversion of 3-bit binary input into 8 unique output lines. This configuration is ideal for applications requiring efficient signal routing and decoding.
• Single Supply Operation: With a supply voltage range of 4.5V to 5.5V, the IC ensures stable performance across a narrow voltage band, simplifying power supply design and reducing power consumption.
• Output Current Capability: The device supports an output current of 8mA for both high and low states, ensuring reliable signal transmission and compatibility with a wide range of downstream components.
• Surface Mount Compatibility: The 16-TSSOP package format is designed for surface mount technology (SMT), facilitating automated assembly processes and enhancing the reliability of the final product.
• Compliance and Status: The SN74AHCT138PWRG4 is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international trade regulations.
• Moisture Sensitivity Level: The IC has an MSL rating of 1 (unlimited), making it suitable for storage and handling in various environmental conditions without the need for special precautions.

SN74AHCT138PWRG4 Applications

The SN74AHCT138PWRG4 is versatile and finds applications in a variety of electronic systems where signal decoding and demultiplexing are required. Some specific use cases include:

• Digital Systems: Ideal for use in digital systems such as microprocessors, microcontrollers, and digital signal processors (DSPs) where efficient signal routing and decoding are crucial.
• Memory Management: Used in memory address decoding to manage and route signals to specific memory locations, enhancing the performance and efficiency of memory systems.
• Communication Systems: In communication systems, the IC can be employed for signal demultiplexing, allowing multiple signals to be transmitted over a single line and then separated at the receiving end.
• Consumer Electronics: Found in consumer electronics such as televisions, set-top boxes, and gaming consoles, where it helps in managing and decoding various control signals.

Conclusion of SN74AHCT138PWRG4

The SN74AHCT138PWRG4 is a robust and reliable decoder/demultiplexer IC that offers significant advantages in signal routing and decoding applications. Its single supply operation, high output current capability, and surface mount compatibility make it a versatile choice for a wide range of electronic systems. Despite being marked as obsolete, the SN74AHCT138PWRG4 remains a valuable component for legacy systems and applications where its unique features and performance benefits are still highly sought after.

SN74AHCT138PWRG4 Documents

Download datasheets and manufacturer documentation for SN74AHCT138PWRG4

Datasheets :

SN54/74AHCT138      

PCN Obsolescence/ EOL :

EOL 31/Oct/2023      

HTML Datasheet :

SN54/74AHCT138