FSTUD32450GX

Overview

The FSTUD32450GX is a configurable bus switch manufactured by Fairchild Semiconductor. It provides between 4-bit and 40-bit high-speed CMOS TTL-compatible bus switching capabilities. The device features selectable level shifting to accommodate different voltage domains. It is packaged in a plastic Fine-Pitch Ball Grid Array (FBGA).

Feature Summary

• Configurable bit-width from 4-bit to 40-bit for flexible system integration.
• Selectable voltage level shifting to bridge different logic families.
• Low on-resistance of 4Ω minimizes signal degradation.
• Zero bounce operation in flow-through mode ensures signal integrity.

Applications

• High-speed data bus interconnects
• Voltage domain translation interfaces
• TTL-to-CMOS level conversion

Procurement Notes

Verify the specific suffix 'GX' against official Fairchild documentation to confirm package type and temperature range. Ensure compatibility with the required FBGA footprint. Confirm availability status as this component may be subject to lifecycle changes.

Selection Notes

Select this component when a configurable bus width up to 40 bits is required. It is suitable for applications needing low propagation delay and minimal ground bounce noise. Verify that the control inputs are compatible with the system's TTL levels.

Part Context

This part belongs to the Universal Bus Switch family from Fairchild Semiconductor. These devices are designed to provide high-speed switching with low power consumption. The series supports various bit configurations to simplify board layout and reduce pin counts in complex digital systems.

Replacement Considerations

The FSTD32450 is a related variant within the same product family offering similar configurable bus switching features. Verify pinout and electrical specifications before substitution.