Texas Instruments

SN74HC138DRE4  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74HC138DRE4 Description

The SN74HC138DRE4 is a high-performance decoder/demultiplexer integrated circuit (IC) from Texas Instruments, designed for a wide range of digital signal processing applications. This IC features a 1 x 3:8 decoding function, enabling it to convert three input lines into eight output lines. It operates on a single supply voltage ranging from 2V to 6V, making it versatile for various power supply configurations. The SN74HC138DRE4 is housed in a 16SOIC package, which is suitable for surface mount applications, ensuring ease of integration into modern printed circuit boards (PCBs).

SN74HC138DRE4 Features

• Circuit Configuration: The SN74HC138DRE4 features a 1 x 3:8 decoding function, providing eight independent output lines from three input lines. This configuration is highly efficient for applications requiring multiple output signals from a limited number of input lines.
• Single Supply Voltage: The IC operates on a single supply voltage ranging from 2V to 6V, offering flexibility in power supply design and compatibility with a variety of power sources.
• High Output Current Capability: With an output current capability of 5.2mA for both high and low states, the SN74HC138DRE4 can drive multiple loads without the need for additional buffering.
• Surface Mount Packaging: The 16SOIC package is ideal for surface mount technology (SMT), ensuring reliable and compact integration into PCBs.
• Compliance and Safety: The SN74HC138DRE4 is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1 (unlimited), making it suitable for storage and handling in various environments.
• Series Compatibility: As part of the 74HC series, the SN74HC138DRE4 is compatible with other devices in the series, allowing for seamless integration into existing systems.

SN74HC138DRE4 Applications

The SN74HC138DRE4 is ideal for a variety of applications where efficient decoding and demultiplexing of digital signals are required. Some specific use cases include:

• Digital Systems: In digital systems, the SN74HC138DRE4 can be used to decode address lines in memory systems, enabling efficient data routing and access.
• Control Systems: In control systems, the IC can be used to demultiplex control signals, allowing for the control of multiple devices or functions from a single set of input lines.
• Data Routing: The SN74HC138DRE4 can be used in data routing applications to direct data streams to specific destinations based on input signals.
• Communication Systems: In communication systems, the IC can be used to decode and route signals between different components or modules.

Conclusion of SN74HC138DRE4

The SN74HC138DRE4 is a robust and versatile decoder/demultiplexer IC that offers significant advantages in digital signal processing applications. Its 1 x 3:8 decoding function, single supply voltage operation, and high output current capability make it an ideal choice for a wide range of applications. The surface mount packaging ensures easy integration into modern PCBs, while compliance with environmental and safety standards ensures reliability and sustainability. Whether used in digital systems, control systems, data routing, or communication systems, the SN74HC138DRE4 provides reliable performance and efficient signal processing.

SN74HC138DRE4 Documents

Download datasheets and manufacturer documentation for SN74HC138DRE4

Datasheets :

SN54HC138, SN74HC138