FST3245QSCX

Overview

The FST3245QSCX is a high-speed CMOS TTL-compatible bus switch manufactured by Fairchild Semiconductor. It provides four independent one-bit switches with separate output enable inputs, organized in a flow-through configuration. The device features low on-resistance to minimize propagation delay and ground bounce noise while maintaining zero bounce characteristics during switching operations.

Feature Summary

• Provides four independent one-bit bus switches with separate control inputs
• Features low on-resistance for minimal signal propagation delay
• Maintains zero bounce behavior in flow-through mode operation

Applications

• High-speed data bus switching applications
• TTL-to-CMOS level translation interfaces
• Low-noise digital signal routing systems

Procurement Notes

Verify the specific suffix QSCX against official Fairchild documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperature ranges and voltage levels before procurement. Cross-reference part numbers with current manufacturer catalogs to confirm availability status.

Selection Notes

Select this component when requiring isolated bidirectional bus switching with minimal signal distortion. Consider the separate enable inputs for precise control of individual bit paths. Evaluate the flow-through architecture benefits for system layout optimization compared to other bus switch configurations.

Part Context

This device belongs to Fairchild's FST series of high-speed bus switches, designed for applications requiring fast switching speeds with low power consumption. The family utilizes advanced CMOS technology to achieve performance comparable to faster logic families while maintaining lower power requirements suitable for portable and battery-operated devices.

Replacement Considerations

Consult official substitution guides for equivalent bus switches from Fairchild or other manufacturers. Verify pinout compatibility and electrical parameters match before implementing any alternative components in existing designs.