Texas Instruments

SN74AS257NSR  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74AS257NSR Description

The SN74AS257NSR is a high-performance multiplexer IC designed for a wide range of digital applications. Manufactured by Texas Instruments, this device is part of the 74AS series and features a 4 x 2:1 multiplexer circuit with independent operation. It is designed for surface mount applications and comes in a 16SO package, making it ideal for compact and space-efficient designs. The SN74AS257NSR operates within a supply voltage range of 4.5V to 5.5V, ensuring reliable performance across various power supply conditions. It supports a single supply voltage source, simplifying power management in digital circuits.

SN74AS257NSR Features

• Operating Temperature Range: The SN74AS257NSR operates reliably within a temperature range of 0°C to 70°C, making it suitable for and industrial commercial applications where environmental conditions may vary.
• Independent Circuits: The device features one independent 4 x 2:1 multiplexer circuit, allowing for efficient signal routing and control in complex digital systems.
• High Current Capability: The SN74AS257NSR can handle output currents of up to 15mA for high-level signals and 48mA for low-level signals, ensuring robust performance even under heavy load conditions.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the SN74AS257NSR is highly resistant to moisture, reducing the risk of damage during manufacturing and storage processes.
• Compliance and Safety: The SN74AS257NSR is REACH unaffected and ROHS3 compliant, ensuring it meets the highest environmental and safety standards.
• Packaging: The device is available in a Tape & Reel (TR) package, facilitating efficient handling and automated assembly processes.

SN74AS257NSR Applications

The SN74AS257NSR is ideal for a variety of applications where efficient signal routing and control are required. Its compact size and high performance make it suitable for:

• Digital Signal Processing: In systems where multiple digital signals need to be selectively routed, the SN74AS257NSR provides a reliable and efficient solution.
• Data Acquisition Systems: The multiplexer can be used to switch between different input channels, enabling the acquisition and processing of multiple data streams.
• Communication Systems: The device can be employed in communication systems to manage data transmission and reception across multiple channels.
• Automotive Electronics: Given its robustness and compliance with environmental standards, the SN74AS257NSR is well-suited for automotive applications where reliability and performance are critical.

Conclusion of SN74AS257NSR

The SN74AS257NSR from Texas Instruments is a versatile and high-performance multiplexer IC that offers significant advantages over similar models. Its wide operating temperature range, high current capability, and compliance with environmental standards make it a reliable choice for a variety of digital applications. Whether used in digital signal processing, data acquisition systems, or automotive electronics, the SN74AS257NSR ensures efficient signal routing and control, making it an essential component for modern digital designs.

SN74AS257NSR Documents

Download datasheets and manufacturer documentation for SN74AS257NSR

Datasheets :

SN54ALS25xA, SN74A(L)S25x(A)       SNx4A(L)S257N(A)      

PCN Packaging :

Carrier Tape Revision C 09/Apr/2015       Carrier Tape Revision A 06/Mar/2015