FST3257QSCX

Overview

The FST3257QSCX is a high-speed CMOS multiplexer/demultiplexer bus switch manufactured by Fairchild Semiconductor. It features a dual 4:1 architecture with low on-resistance, enabling signal routing without adding propagation delay or generating ground bounce noise. The device operates with control inputs compatible with TTL levels and includes an output enable function to isolate ports when inactive.

Feature Summary

• Dual 4:1 multiplexer/demultiplexer configuration
• Low on-resistance for minimal signal degradation
• TTL-compatible control inputs
• High-impedance isolation state via OE pin

Applications

• Data bus switching in digital systems
• Signal routing in communication interfaces
• Multiplexing applications requiring low latency

Procurement Notes

Verify the specific suffix QSCX against official Fairchild/ON Semiconductor documentation to confirm package type, temperature range, and lead-free status. Ensure compatibility with required operating conditions before procurement.

Selection Notes

Select this component for applications requiring fast switching speeds and low insertion loss. Verify that the voltage levels of the controlled signals fall within the specified operating range of the device.

Part Context

This part belongs to the FST series of high-speed CMOS switches. It is designed for applications demanding low power consumption and high bandwidth, serving as a critical component in modern digital signal processing and data transmission circuits.