Texas Instruments

SN74AS158D

SN74AS158D Description

The SN74AS158D is a 4 x 2:1 multiplexer integrated circuit (IC) designed by Texas Instruments. This device is part of the 74AS series and is housed in a surface-mount 16SOIC package. It operates within a voltage supply range of 4.5V to 5.5V and is suitable for applications within an operating temperature range of 0°C to 70°C. The SN74AS158D features a single supply voltage source and provides independent control over its circuits. It is classified under the HTSUS code 8542.39.0001 and is REACH unaffected with a RoHS3 compliant status, ensuring environmental and regulatory compliance. The IC is available in a tube package and has a moisture sensitivity level (MSL) of 1, indicating it is unlimited in terms of exposure to moisture.

SN74AS158D Features

• Multiplexing Capability: The SN74AS158D is designed to handle four independent 2:1 multiplexing circuits, allowing for efficient data routing and selection.
• Low Power Consumption: With a supply voltage range of 4.5V to 5.5V, this IC is optimized for low power applications, making it suitable for battery-operated devices.
• High Output Current: The IC can handle an output high current of 400µA and an output low current of 8mA, ensuring robust performance in various electronic systems.
• Surface Mount Technology (SMT): The 16SOIC package is ideal for high-density PCB designs, enabling compact and efficient circuit layouts.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 70°C makes the SN74AS158D suitable for a variety of industrial and commercial applications.
• Regulatory Compliance: The REACH unaffected and RoHS3 compliant status ensures that the SN74AS158D meets stringent environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1, the IC is suitable for environments with varying humidity levels, providing flexibility in manufacturing and storage conditions.

SN74AS158D Applications

The SN74AS158D is ideal for applications requiring efficient data routing and selection. Some specific use cases include:

• Digital Signal Processing: In systems where multiple data sources need to be selectively routed to a single output, the SN74AS158D provides a reliable and efficient solution.
• Communication Systems: For switching between different communication channels or data streams, this multiplexer ensures seamless data transmission.
• Automotive Electronics: Given its wide operating temperature range and robust performance, the SN74AS158D is suitable for automotive applications where reliability and durability are critical.
• Industrial Control Systems: In industrial settings, the IC can be used to manage multiple input signals and direct them to appropriate processing units.
• Consumer Electronics: The compact size and low power consumption make the SN74AS158D suitable for consumer electronics devices where space and energy efficiency are important considerations.

Conclusion of SN74AS158D

The SN74AS158D from Texas Instruments is a versatile and reliable multiplexer IC designed for a wide range of applications. Its 4 x 2:1 multiplexing capability, low power consumption, and robust performance make it an ideal choice for digital signal processing, communication systems, and various industrial and consumer electronics applications. The surface-mount package and wide operating temperature range further enhance its suitability for high-density PCB designs and diverse environmental conditions. Despite being marked as obsolete, the SN74AS158D continues to offer unique features and advantages over similar models, ensuring its relevance in modern electronic systems.