Texas Instruments

SN74LS138DG4  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74LS138DG4 Description

The SN74LS138DG4 is a high-performance 3:8 decoder/demultiplexer integrated circuit (IC) designed by Texas Instruments, a leading manufacturer in the semiconductor industry. This IC is part of the 74LS series, known for its reliability and compatibility with a wide range of digital systems. The SN74LS138DG4 features a single 3:8 decoding circuit, making it ideal for applications requiring efficient signal routing and control.

SN74LS138DG4 Features

• Operating Temperature Range: The SN74LS138DG4 operates within a temperature range of 0°C to 70°C, ensuring stable performance in various environmental conditions.
• Power Supply: It operates on a single supply voltage ranging from 4.75V to 5.25V, simplifying power management and reducing the need for multiple power sources.
• Output Current: The IC provides an output current of 400µA for high-level signals and 8mA for low-level signals, making it suitable for driving various types of loads.
• Mounting Type: The surface-mount package allows for compact and efficient integration into modern PCB designs, enhancing space utilization and thermal performance.
• Compliance: The SN74LS138DG4 is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the IC is highly resistant to moisture, making it suitable for use in humid environments without additional protective measures.
• Packaging: The IC is available in a tube package, which facilitates easy handling and storage during manufacturing processes.

SN74LS138DG4 Applications

The SN74LS138DG4 is versatile and finds applications in a variety of electronic systems:

• Digital Systems: Ideal for decoding address lines in microprocessors and memory systems, enabling efficient data routing and control.
• Control Systems: Used in industrial control systems for signal decoding and multiplexing, enhancing system efficiency and reliability.
• Consumer Electronics: Suitable for applications in consumer electronics where compact size and high performance are critical, such as in digital signal processing and control circuits.
• Telecommunications: Employed in telecommunication equipment for signal routing and control, ensuring reliable and efficient operation.

Conclusion of SN74LS138DG4

The SN74LS138DG4 is a robust and versatile decoder/demultiplexer IC that offers significant advantages over similar models. Its wide operating temperature range, single supply voltage, and high output current capabilities make it ideal for a variety of applications. The surface-mount package and compliance with environmental standards further enhance its suitability for modern electronic designs. Whether used in digital systems, control systems, consumer electronics, or telecommunications, the SN74LS138DG4 provides reliable performance and efficient signal management.

SN74LS138DG4 Documents

Download datasheets and manufacturer documentation for SN74LS138DG4

Datasheets :

SN54/74(LS,S)138/A      

HTML Datasheet :

SN54/74(LS,S)138/A