Texas Instruments

SN74LS257BDR  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74LS257BDR Description

The SN74LS257BDR is a high-performance 4 x 2:1 multiplexer from Texas Instruments, designed for a wide range of digital applications. This logic IC chip belongs to the 74LS series and is housed in a surface-mount 16SOIC package, making it ideal for compact and space-efficient designs. The SN74LS257BDR operates within a voltage supply range of 4.75V to 5.25V, ensuring reliable performance and compatibility with standard digital systems.

SN74LS257BDR Features

• Operating Temperature Range: The SN74LS257BDR is designed to operate within a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and consumer applications.
• Single Supply Voltage: With a single supply voltage requirement, the SN74LS257BDR simplifies power management and reduces the complexity of power supply design.
• Independent Circuits: The multiplexer features 1 independent circuit, allowing for efficient data routing and selection.
• High Output Current Capability: The SN74LS257BDR can handle output currents of up to 2.6mA for high-level outputs and 24mA for low-level outputs, providing robust performance in demanding applications.
• Moisture Sensitivity Level: The device has an MSL of 1 (Unlimited), indicating it is not moisture-sensitive, which enhances its reliability in various environmental conditions.
• Compliance and Standards: The SN74LS257BDR is REACH unaffected and ROHS3 compliant, ensuring it meets the latest environmental and safety standards. It is also classified under HTSUS code 8542.39.0001.
• Packaging: The device is available in a Tape & Reel (TR) package, facilitating automated assembly processes and ensuring high production efficiency.

SN74LS257BDR Applications

The SN74LS257BDR is ideal for applications requiring efficient data routing and selection. Its 4 x 2:1 multiplexer configuration allows for the selection of one of four input signals to be routed to a single output. This makes it particularly useful in:

• Data Acquisition Systems: For selecting and routing analog or digital signals from multiple sensors or sources.
• Digital Signal Processing: In applications where multiple data streams need to be processed or analyzed.
• Communication Systems: For switching between different communication channels or data paths.
• Automotive Electronics: For managing and routing signals in various automotive control systems.
• Consumer Electronics: In devices such as smartphones, tablets, and other portable electronics where space and power efficiency are critical.

Conclusion of SN74LS257BDR

The SN74LS257BDR from Texas Instruments is a versatile and reliable multiplexer that offers significant advantages over similar models. Its compact surface-mount package, wide operating temperature range, and robust output current capabilities make it an excellent choice for a variety of applications. The device's compliance with environmental and safety standards further enhances its appeal for modern electronics designs. Whether used in data acquisition, digital signal processing, or consumer electronics, the SN74LS257BDR provides a high-performance solution that ensures reliable and efficient signal routing.

SN74LS257BDR Documents

Download datasheets and manufacturer documentation for SN74LS257BDR

Datasheets :

SN54/74(LS,S)257/58      

HTML Datasheet :

SN54/74(LS,S)257/58