PM8573B-F3EI

Overview

The PM8573B-F3EI is a Switchtec PFX-I PCIe Gen3 fanout switch manufactured by Microchip Technology. It provides 48 lanes of connectivity across 24 ports, facilitating high-bandwidth data transfer in complex systems. The component utilizes a 650-pin FCBGA package to support dense interconnect requirements. Designed for robust performance, it enables efficient signal distribution and protocol conversion within PCIe architectures.

Feature Summary

• Supports PCIe Gen3 standard for high-speed data transmission
• Provides fanout switching capabilities across multiple ports
• Integrates specialized interface logic for system scalability

Applications

• High-performance computing server backplanes
• Storage area network (SAN) infrastructure
• Industrial automation control systems

Procurement Notes

Verify the specific ordering suffix matches the required package variant and temperature range. Confirm RoHS compliance status with the manufacturer prior to procurement. Ensure compatibility with existing PCB footprint designs and thermal management solutions. Cross-reference the datasheet revision to validate pin assignments and electrical characteristics against current design specifications.

Selection Notes

Select this component when a high-density PCIe fanout solution is required for Gen3 interfaces. Evaluate the 24-port capacity against system bandwidth needs. Consider the 650-pin BGA package constraints for board layout and assembly processes. Compare against alternative Switchtec models if different lane counts or port configurations are necessary for the specific application topology.

Part Context

This part belongs to the Switchtec series of PCIe switches from Microchip Technology. It is designed to expand PCIe connectivity in enterprise and industrial environments. The PFX-I designation indicates its role as a fanout switch, distinct from routing switches. It supports advanced features typical of the family, such as virtualization and isolation capabilities.

Replacement Considerations

Consult official substitution lists for compatible Switchtec models. Verify pin-to-pin compatibility and electrical parameter alignment before replacing. Ensure the alternative part supports the same PCIe Gen3 speed and lane count requirements.