DM74AS257M

Overview

The DM74AS257M is a quad 1-of-2 data selector/multiplexer manufactured by Fairchild Semiconductor, part of the 74AS logic family. It features four independent multiplexers with three-state outputs in a 16-pin SOIC package. The device operates on a single power supply ranging from 4.5V to 5.5V. It provides high-speed switching capabilities characteristic of Advanced Schottky technology, suitable for digital signal routing applications.

Feature Summary

• Contains four independent 1-of-2 multiplexers
• Features three-state outputs for bus driving
• Advanced Schottky process for high speed

Applications

• Digital signal routing
• Data selection circuits
• Multiplexing systems

Procurement Notes

Verify component authenticity and datasheet specifications before integration. Confirm pinout compatibility with existing designs. Check for RoHS compliance status as required by project regulations. Ensure proper handling procedures are followed during assembly due to surface mount packaging.

Selection Notes

Select this component when four independent multiplexing channels with three-state output control are required. Consider the 74AS series performance characteristics for speed versus power consumption trade-offs. Verify that the 16-SOIC package fits the available board space and manufacturing capabilities.

Part Context

This component belongs to the Fairchild Semiconductor 74AS logic family, known for Advanced Schottky TTL performance. It serves as a digital logic solution for data routing tasks within larger integrated circuit systems designed for standard voltage operation ranges.

Replacement Considerations

SN74AS257D is listed as a parameter equivalent substitute.