Texas Instruments

SN74LS251DR

SN74LS251DR Description

The SN74LS251DR is a high-performance multiplexer integrated circuit (IC) from Texas Instruments, designed to efficiently manage and switch between multiple input signals. This 1 x 8:1 multiplexer is part of the 74LS series, renowned for its reliability and performance in digital logic applications. The SN74LS251DR features a single supply voltage range of 4.75V to 5.25V, ensuring stable operation within a well-defined power envelope. It is housed in a surface-mount 16SOIC package, making it suitable for compact and space-efficient designs.

SN74LS251DR Features

• Operating Temperature Range: The SN74LS251DR operates reliably within a temperature range of 0°C to 70°C, making it suitable for a wide range of industrial and commercial applications.
• Single Supply Voltage: With a supply voltage range of 4.75V to 5.25V, this IC ensures consistent performance without the need for multiple power sources.
• High Current Capability: The SN74LS251DR can handle output currents of up to 2.6mA for high-level outputs and 8mA for low-level outputs, providing robust signal handling capabilities.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), this IC is highly resistant to moisture, ensuring long-term reliability in various environmental conditions.
• Compliance and Standards: The SN74LS251DR is REACH unaffected and ROHS3 compliant, meeting stringent environmental and safety standards. It also carries the ECCN classification of EAR99, facilitating international trade and compliance.
• Packaging: Available in a tape and reel (TR) package, the SN74LS251DR is ideal for automated assembly processes, enhancing manufacturing efficiency and scalability.

SN74LS251DR Applications

The SN74LS251DR is well-suited for applications requiring efficient signal routing and switching. Its 1 x 8:1 multiplexing capability allows it to select one of eight input signals and route it to a single output line, making it ideal for:

• Data Acquisition Systems: Efficiently managing multiple sensor inputs in industrial automation and monitoring systems.
• Communication Systems: Switching between different communication channels in networking and telecommunication equipment.
• Embedded Systems: Enabling compact and efficient signal processing in microcontroller-based designs.
• Medical Equipment: Managing multiple diagnostic inputs in medical monitoring devices.
• Consumer Electronics: Enhancing signal routing in devices such as smartphones, tablets, and gaming consoles.

Conclusion of SN74LS251DR

The SN74LS251DR from Texas Instruments stands out as a versatile and reliable multiplexer IC, offering a robust solution for signal switching and routing in various electronic systems. Its compact surface-mount package, combined with its high current capability and wide operating temperature range, makes it an ideal choice for both industrial and consumer applications. The SN74LS251DR's compliance with environmental and safety standards ensures its suitability for modern, eco-friendly designs. Whether used in data acquisition, communication systems, or embedded devices, the SN74LS251DR delivers consistent performance and reliability, making it a preferred choice for engineers and designers in the electronics industry.