Texas Instruments

SN74AS158NS  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74AS158NS Description

The SN74AS158NS is a high-performance multiplexer integrated circuit (IC) designed by Texas Instruments, a leading manufacturer in the semiconductor industry. This IC is part of the 74AS series, known for its robust performance and reliability in various electronic applications. The SN74AS158NS features a 4 x 2:1 multiplexer circuit, providing four independent 2:1 multiplexing channels in a single package. It operates within a voltage supply range of 4.5V to 5.5V, ensuring compatibility with a wide range of digital systems. The device is designed for surface-mount technology (SMT), making it ideal for modern, compact electronic designs.

SN74AS158NS Features

• Operating Temperature: The SN74AS158NS operates within a temperature range of 0°C to 70°C, making it suitable for general industrial and commercial applications where moderate temperature variations are expected.
• Circuit Configuration: It features four independent 2:1 multiplexers, allowing for efficient data selection and routing. This configuration is particularly useful in applications requiring multiple data paths to be controlled by a single select line.
• Voltage Supply: The single supply voltage range of 4.5V to 5.5V ensures compatibility with standard TTL and CMOS logic levels, simplifying integration into existing digital systems.
• Output Current: The IC can provide an output high current of 400µA and an output low current of 8mA, ensuring reliable signal transmission even under varying load conditions.
• Moisture Sensitivity Level (MSL): With an MSL rating of 3 (168 hours), the SN74AS158NS is suitable for use in environments with moderate humidity levels, ensuring long-term reliability.
• Package Type: The bulk packaging option facilitates efficient handling and storage, making it ideal for large-scale production and assembly processes.

SN74AS158NS Applications

The SN74AS158NS is well-suited for a variety of applications where data selection and routing are critical. Some specific use cases include:

• Digital Signal Processing: In systems where multiple data sources need to be selected and processed, the SN74AS158NS can efficiently route signals to the appropriate processing units.
• Microcontroller Interfaces: The multiplexer can be used to interface multiple peripherals with a single microcontroller, reducing the number of required I/O pins and simplifying the overall system design.
• Communication Systems: In applications such as UART or SPI communication, the SN74AS158NS can manage multiple data lines, ensuring reliable data transmission and reception.
• Industrial Control Systems: The IC's robust performance and moderate temperature range make it suitable for use in industrial control panels and automation systems where reliable data routing is essential.

Conclusion of SN74AS158NS

The SN74AS158NS from Texas Instruments is a versatile and reliable multiplexer IC that offers significant advantages in various digital applications. Its 4 x 2:1 multiplexing capability, combined with a wide operating voltage range and robust performance, makes it an ideal choice for designers looking to optimize data routing and selection in their systems. The surface-mount package and moderate temperature range further enhance its suitability for modern electronic designs. Whether used in digital signal processing, microcontroller interfaces, or industrial control systems, the SN74AS158NS provides a reliable and efficient solution for managing multiple data paths.

SN74AS158NS Documents

Download datasheets and manufacturer documentation for SN74AS158NS