FST3384QSCX

Overview

The FST3384QSCX is a 10-bit bus switch manufactured by Fairchild Semiconductor, belonging to the CBT/FST/QS/5C/B series. It features a TSSOP-24 package with a 4.40 mm body width and operates within an industrial temperature range of -40°C to +85°C. The device provides TTL-compatible bus switching capabilities with low on-resistance characteristics.

Feature Summary

• Provides ten high-speed CMOS bus switches with separate output enable inputs for independent port control
• Features low on-resistance to minimize propagation delay and reduce ground bounce noise during signal transmission
• Supports flow-through mode operation with zero bounce characteristics for reliable data integrity

Applications

• High-speed digital bus interconnects in consumer electronics
• Portable equipment requiring low power consumption and small form factors
• Industrial systems utilizing TTL-compatible logic interfaces

Procurement Notes

Verify the specific suffix QSCX against official Fairchild documentation to confirm the exact package type and tape-and-reel configuration. Ensure compliance with RoHS standards and lead-free JEDEC requirements as specified in the manufacturing datasheet before procurement.

Selection Notes

Select this component when designing circuits requiring multiple parallel data lines with independent enable controls. The 10-bit architecture reduces board space compared to discrete solutions. Verify that the operating voltage and speed requirements align with the FST family specifications.

Part Context

This part belongs to the FST (Fast Switch Technology) family derived from Fairchild's proven switch technology. It shares functional similarities with other members like the FST3125 but offers higher channel density. The QSCX designation indicates a specific surface-mount packaging variant optimized for automated assembly processes.

Replacement Considerations

Compatible substitutes include the FST3384MTCX and CBTS3384PW. Verify pinout compatibility and electrical parameters such as on-resistance and propagation delay before substitution.