SN74ALS251N Data Selector/Multiplexer by Texas Instruments

The SN74ALS251N, manufactured by Texas Instruments, is a high-performance, 8-input multiplexer with 3-state outputs. This integrated circuit is designed to select one of eight data sources and output the selected data on a common output line, making it an essential component for data routing applications in digital systems.

Key Features

• Logic Family: ALS - Advanced Low-Power Schottky
• Operating Voltage: Typically 4.5V to 5.5V, ensuring compatibility with TTL logic levels.
• Package: The device comes in a standard 16-pin plastic DIP (Dual In-line Package), making it easy to handle and integrate into various circuit designs.
• Output Configuration: 3-state outputs, which can be placed in a high-impedance state, allowing for the connection of multiple outputs to a common bus without interference.

Performance Specifications

• Propagation Delay: Fast switching speeds with a typical propagation delay time of 11ns, allowing for efficient data processing and high-speed operations.
• Power Consumption: Low power consumption characteristic of the ALS logic family, making it suitable for power-sensitive applications.
• Input Current: Maximum of 1μA at 18V, which is indicative of the device's high impedance inputs and low power draw.

Applications

The SN74ALS251N is versatile and can be used in various digital applications, including:

• Data multiplexing for data acquisition systems
• Signal routing in communication systems
• Function generators and digital instrumentation
• Control system logic applications

Quality and Reliability

Texas Instruments is known for its commitment to quality, and the SN74ALS251N is no exception. The device meets or exceeds the industry standards for performance and reliability, ensuring long-term stability and functionality in your electronic designs.