Texas Instruments

SN74HCS138BQBR  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74HCS138BQBR Description

The SN74HCS138BQBR is a high-performance decoder/demultiplexer integrated circuit (IC) from Texas Instruments, designed for a wide range of digital logic applications. This device is part of the 74HCS series, known for its high-speed CMOS technology, which offers excellent performance and low power consumption. The SN74HCS138BQBR features a 1 x 3:8 decoding function, enabling it to convert 3-bit binary input into 8 unique output signals. It operates on a single supply voltage ranging from 2V to 6V, making it versatile for various power supply configurations.

The SN74HCS138BQBR is packaged in a 16-lead WQFN (No Lead) package, which is ideal for surface mount applications. This packaging ensures high thermal performance and excellent mechanical stability, making it suitable for use in compact and high-density PCB designs. The device is also REACH unaffected and RoHS3 compliant, adhering to stringent environmental regulations and ensuring safe usage in modern electronics.

SN74HCS138BQBR Features

• High-Speed Performance: The SN74HCS138BQBR leverages high-speed CMOS technology, providing fast switching times and low propagation delays. This ensures efficient and reliable operation in high-speed digital systems.
• Low Power Consumption: Designed to operate within a wide voltage range (2V to 6V), the SN74HCS138BQBR offers low power consumption, making it suitable for battery-powered and energy-efficient applications.
• High Output Current Capability: The device can handle output currents of up to 7.8mA for both high and low states, ensuring robust performance and compatibility with various load conditions.
• Single Supply Operation: The ability to operate on a single supply voltage simplifies power management and reduces the complexity of the power supply circuitry.
• Surface Mount Compatibility: The 16-lead WQFN package is optimized for surface mount technology (SMT), allowing for easy integration into modern PCB designs and enabling high-density layouts.
• Environmental Compliance: The SN74HCS138BQBR is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental standards and regulations.
• Moisture Sensitivity Level (MSL) 1: The device has an unlimited shelf life under specified storage conditions, reducing the risk of moisture-related failures during assembly and storage.

SN74HCS138BQBR Applications

The SN74HCS138BQBR is well-suited for a variety of applications where efficient decoding and demultiplexing are required. Some specific use cases include:

• Microcontroller and Microprocessor Systems: Ideal for expanding address lines or controlling multiple peripherals with minimal input lines.
• Memory Management: Used in memory address decoding to manage multiple memory banks or modules.
• Digital Signal Processing (DSP): Facilitates the routing of digital signals in complex DSP systems, enabling efficient data flow and processing.
• Telecommunications: Employed in signal routing and control functions within communication systems, ensuring reliable data transmission.
• Consumer Electronics: Utilized in devices such as smartphones, tablets, and gaming consoles for efficient signal management and control.

Conclusion of SN74HCS138BQBR

The SN74HCS138BQBR is a versatile and high-performance decoder/demultiplexer IC that offers significant advantages over similar models. Its combination of high-speed operation, low power consumption, and robust output current capability make it an ideal choice for a wide range of digital logic applications. The device's compliance with environmental standards and its compatibility with modern SMT processes further enhance its appeal for contemporary electronics design. Whether used in microcontroller systems, memory management, or digital signal processing, the SN74HCS138BQBR ensures reliable and efficient performance, making it a valuable component in the electronics industry.

SN74HCS138BQBR Documents

Download datasheets and manufacturer documentation for SN74HCS138BQBR