Texas Instruments

SN74ALS251NSR

SN74ALS251NSR Description

The SN74ALS251NSR is a high-performance multiplexer IC designed by Texas Instruments, part of the renowned 74ALS series. This logic IC chip is specifically engineered for applications requiring a compact, efficient, and reliable 1 x 8:1 multiplexer solution. The SN74ALS251NSR operates within a voltage supply range of 4.5V to 5.5V, ensuring compatibility with a wide range of digital systems. It features a single supply voltage source, simplifying power management and reducing the complexity of the circuit design.

The SN74ALS251NSR is housed in a surface-mount package, making it ideal for modern, space-constrained designs. The device operates within an ambient temperature range of 0°C to 70°C, making it suitable for a variety of industrial and commercial applications. With a moisture sensitivity level (MSL) of 1, the SN74ALS251NSR is highly resistant to moisture, ensuring long-term reliability and performance.

SN74ALS251NSR Features

• Operating Temperature: 0°C to 70°C, ensuring robust performance across a wide range of environmental conditions.
• ECCN: EAR99, indicating compliance with export regulations and facilitating international use.
• Independent Circuits: 1, providing a straightforward and efficient multiplexing solution.
• Circuit Configuration: 1 x 8:1, allowing the selection of one of eight input signals to be routed to a single output.
• Mounting Type: Surface Mount, ideal for compact and high-density PCB designs.
• Voltage Supply Source: Single Supply, simplifying power management and reducing design complexity.
• Series: 74ALS, known for its high-speed performance and reliability.
• Type: Multiplexer, designed for efficient signal routing and selection.
• Voltage - Supply: 4.5V to 5.5V, ensuring compatibility with standard digital systems.
• REACH Status: REACH Unaffected, ensuring compliance with stringent chemical regulations.
• Mfr: Texas Instruments, a leading manufacturer known for high-quality and reliable semiconductor products.
• HTSUS: 8542.39.0001, facilitating accurate customs classification.
• Package: Tape & Reel (TR), ideal for automated assembly processes.
• RoHS Status: ROHS3 Compliant, ensuring environmental friendliness and regulatory compliance.
• Base Product Number: 74ALS251, part of a well-established and widely recognized series.
• Current - Output High, Low: 2.6mA, 24mA, providing robust performance and signal integrity.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), ensuring high reliability in various environmental conditions.

SN74ALS251NSR Applications

The SN74ALS251NSR is ideal for a variety of applications where efficient signal routing and selection are required. Its compact surface-mount package and wide operating temperature range make it suitable for:

• Data Acquisition Systems: Where multiple analog or digital signals need to be selectively routed to a single processing unit.
• Industrial Control Systems: For managing and routing control signals in industrial environments.
• Telecommunications: In switching and routing applications within communication networks.
• Consumer Electronics: In devices requiring efficient signal multiplexing, such as smartphones, tablets, and multimedia devices.
• Automotive Electronics: For signal routing in vehicle control units and infotainment systems.

Conclusion of SN74ALS251NSR

The SN74ALS251NSR is a versatile and reliable multiplexer IC that offers significant advantages over similar models. Its wide operating temperature range, single supply voltage, and surface-mount package make it an ideal choice for a variety of applications. The device's compliance with REACH and RoHS3 regulations ensures that it meets the highest environmental and safety standards. With its robust performance and compatibility with standard digital systems, the SN74ALS251NSR is a valuable component for engineers and designers looking to implement efficient signal routing solutions in their projects.