Texas Instruments

SN74ALS158DR

SN74ALS158DR Description

The SN74ALS158DR is a high-performance multiplexer integrated circuit (IC) designed by Texas Instruments, a leading manufacturer in the electronics industry. This IC is part of the 74ALS series and features a 4 x 2:1 multiplexer circuit configuration. It is designed for surface-mount applications and comes in a 16SOIC package, making it suitable for compact and space-efficient designs. The SN74ALS158DR operates within a voltage supply range of 45.V to 5.5V and can function effectively within an operating temperature range of 0°C to 70°C. This multiplexer is ideal for applications requiring efficient signal routing and selection among multiple input sources.

SN74ALS158DR Features

• Circuit Configuration: The SN74ALS158DR features four independent 2:1 multiplexers, allowing for the selection of one of two input signals for each multiplexer. This configuration is highly versatile and can handle multiple signal paths efficiently.
• Single Supply Operation: The IC operates on a single supply voltage ranging from 4.5V to 5.5V, simplifying power supply requirements and reducing the complexity of the power management system.
• Output Current Capability: The SN74ALS158DR can provide an output high current of 400µA and an output low current of 8mA, ensuring robust performance and compatibility with a wide range of load conditions.
• Surface-Mount Technology (SMT): The surface-mount package type facilitates easy integration into modern printed circuit boards (PCBs), enhancing reliability and reducing the overall footprint of the design.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the SN74ALS158DR is highly resistant to moisture, making it suitable for various environmental conditions without the need for additional protective measures.
• Compliance and Standards: The SN74ALS158DR is REACH unaffected and RoHS3 compliant, ensuring it meets the stringent environmental and safety standards required in the electronics industry.

SN74ALS158DR Applications

The SN74ALS158DR is well-suited for a variety of applications where signal selection and routing are critical. Some specific use cases include:

• Data Acquisition Systems: In systems where multiple sensors or data sources need to be selectively connected to a single processing unit, the SN74ALS158DR can efficiently route the desired signal.
• Communication Systems: For applications requiring the selection of different communication channels or signal paths, this multiplexer provides a reliable solution.
• Automotive Electronics: Given its robustness and compliance with environmental standards, the SN74ALS158DR can be used in automotive applications where space and reliability are paramount.
• Industrial Control Systems: In industrial settings, the multiplexer can be used to manage and route control signals, ensuring efficient operation of machinery and processes.

Conclusion of SN74ALS158DR

The SN74ALS158DR is a versatile and reliable multiplexer IC that offers significant advantages in signal routing and selection. Its compact surface-mount package, single supply operation, and robust performance make it an ideal choice for a wide range of applications, from data acquisition to industrial control systems. Despite being marked as obsolete, the SN74ALS158DR remains a valuable component for engineers and designers seeking efficient and reliable signal management solutions.