SN74F257NSR

Overview

The SN74F257NSR is a quad 2-to-1 data selector/multiplexer from the Texas Instruments SN74F series. It features four independent multiplexers with three-state outputs, housed in a 16-pin SOIC-Narrow package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a propagation delay of 7 ns. It functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates four independent 2-to-1 multiplexers for parallel data routing
• Provides three-state outputs to facilitate bus-oriented systems
• Utilizes high-speed switching characteristics typical of the F logic family

Applications

• Bus-oriented memory addressing
• Data routing in digital communication systems
• Signal selection in microprocessor-based designs

Procurement Notes

Verify the suffix 'N' indicates the SOIC-16 package and 'SR' denotes tape-and-reel packaging. Confirm RoHS compliance status through official manufacturer documentation. Ensure the component matches the specified SN74F series logic family requirements for your circuit design.

Selection Notes

Select this component when multiple independent 2-to-1 signal paths are required with output control. Compare against similar multiplexers if different input counts or package styles are needed. Verify that the 7 ns propagation delay meets the timing constraints of your application.

Part Context

This part belongs to the SN74F series, known for high-speed performance compared to standard 74LS logic. It serves as a fundamental building block for data selection tasks in digital electronics, offering a compact solution for managing multiple data sources.