The SN74AS257D is a high-performance integrated circuit from Texas Instruments designed for multiplexing and data selection in digital systems. This versatile device is a member of the Advanced Schottky (AS) logic family, which is renowned for its fast switching speeds and low power consumption, making it ideal for high-speed applications.

Key Features

• Quad 2-Line to 1-Line Data Selectors/Multiplexers: The SN74AS257D features four individual 2:1 multiplexers, allowing users to select between two sets of inputs and route them to a single output line.
• High-Speed Performance: With typical propagation delay times as low as 3.5 ns, this component ensures rapid data processing, which is crucial for time-sensitive applications.
• Low Power Consumption: The device operates efficiently with a typical power dissipation of just 20 mW, contributing to energy savings in electronic systems.
• 3-State Outputs: The outputs can be placed in a high-impedance state, which is useful for interfacing with bus-oriented systems and prevents bus contention issues.
• Wide Operating Temperature Range: The SN74AS257D functions reliably across a broad temperature range from 0°C to 70°C, ensuring stable performance in various environmental conditions.

Applications

The SN74AS257D is suitable for a wide array of applications, including:

• Data routing and signal gating
• Function generation
• Communication systems
• Process control systems
• Computer systems

Technical Specifications

With its combination of speed, efficiency, and versatility, the SN74AS257D from Texas Instruments stands out as an excellent choice for designers seeking a reliable multiplexer for their digital systems.