FSTU32X384QSPX

Overview

The FSTU32X384QSPX is a 20-bit low power bus switch manufactured by Fairchild Semiconductor. It features precharged outputs and -2V undershoot protection, designed for high-speed data transmission applications. The device operates with ultra-low on-resistance to minimize propagation delay and ground bounce noise. It supports TTL-compatible logic levels and includes an enable signal to control the connection between ports.

Feature Summary

• Provides 20-bit of ultra-high-speed CMOS TTL-compatible bus switching capability
• Features precharged outputs to ensure stable signal states during transitions
• Includes -2V undershoot protection to safeguard against voltage spikes
• Offers low on-resistance for minimal propagation delay without generating additional ground bounce noise

Applications

• High-speed data bus switching in computing systems
• Signal routing in telecommunications equipment
• Interface isolation in industrial control networks

Procurement Notes

Verify the exact part number suffix QSPX against official Fairchild or ON Semiconductor datasheets to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements and check for RoHS compliance status as per current manufacturing standards. Cross-reference with authorized distributors to confirm availability and authenticity.

Selection Notes

Select this component when a 20-bit wide bus switch is required with low power consumption and robust protection features. Consider its TTL compatibility and low on-resistance for applications demanding fast signal integrity. Evaluate the need for precharged outputs and undershoot protection relative to the specific signal environment and noise immunity requirements of the target design.

Part Context

This device belongs to the FSTU series of bus switches from Fairchild Semiconductor, which are known for their high speed and low power characteristics. The series is designed to replace mechanical relays and other switching mechanisms in modern electronic circuits, offering superior performance in terms of speed and reliability for digital signal routing tasks.

Replacement Considerations

The FSTU32X384 is listed as a similar part with identical functional descriptions regarding 20-bit low power bus switching and -2V undershoot protection. Verify pinout and electrical parameters before substitution.