The 74AC257MTR from STMicroelectronics is a high-speed Quad 2-Input Multiplexer with 3-state outputs that belong to the AC series of logic ICs. This multiplexer provides the function of four individual 2-input multiplexers in a single 16-pin package, making it ideal for applications where space and weight are critical considerations.

Key Features

• Wide Operating Voltage Range: The device operates at a voltage range of 2V to 6V, allowing it to be used in various logic systems without the need for level-shifting circuits.
• High Output Current: Capable of driving up to 24mA at the outputs, the 74AC257MTR can directly drive small loads or interface with other logic families.
• High-Speed Performance: With a typical propagation delay of just 8ns at 5V, this multiplexer is designed for high-speed applications.
• Low Power Consumption: The IC features a low quiescent current, which makes it suitable for battery-operated devices.
• Multiple Configurations: Each multiplexer has two select inputs and an enable input, which allows for a variety of configurations and uses in complex digital systems.
• 3-State Outputs: The outputs can be put into a high-impedance state, allowing for connection to a bus or other systems without interference.

Applications

The versatility of the 74AC257MTR makes it suitable for a wide range of applications, including:

• Data routing
• Signal gating
• Function generation
• Communication systems
• Computer systems
• Instrumentation

Package Information

The 74AC257MTR is available in a TSSOP (Thin Shrink Small Outline Package) package, which is ideal for space-constrained applications. The TSSOP package also provides improved thermal performance and reduced parasitics compared to bulkier packages.

Quality and Reliability

STMicroelectronics is known for its commitment to quality and reliability, and the 74AC257MTR is no exception. It is manufactured to the highest standards to ensure consistent performance and longevity in the field.