PM40100B-FEI

Overview

The PM40100B-FEI is a high-reliability PCIe switch from the Switchtec PFX Gen 4 Fanout family, manufactured by Microchip Technology. It supports up to 100 lanes and 52 ports with 26 virtual switch partitions and 48 non-transparent bridges (NTBs). The device operates at data rates of 16 GT/s and includes hot- and surprise-plug controllers for each port. It features an integrated MIPS processor, advanced error containment, and comprehensive diagnostics including real-time eye capture.

Feature Summary

• High-performance non-blocking architecture supporting flexible lane bifurcation and logical non-transparent interconnects
• Advanced error containment mechanisms including AER, DPC, CTS, and per-port hot- and surprise-plug controllers
• Comprehensive diagnostics and debug capabilities featuring real-time eye capture, external loopback, and performance counters
• Integrated peripherals including Ethernet MAC, TWI, SGPIO, UART, JTAG, and EJTAG interfaces

Applications

• Data center equipment
• Defense and industrial servers
• Cellular infrastructure
• Metro networks and core networking

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with required I/O standards such as SFF-8644 or OCuLink. Confirm that the selected variant meets the necessary lane count and partition requirements for the target topology design.

Selection Notes

Select this component when high reliability and extensive port density are required. Consider the 100-lane capacity and support for up to 48 NTBs for complex topologies. Evaluate the need for integrated diagnostics like real-time eye capture and the availability of the PM42100-KIT evaluation kit for development validation.

Part Context

This part belongs to the Switchtec PFX Gen 4 Fanout PCIe Switch Family, which includes variants with 84, 68, 52, 36, and 28 lanes. The PM40100B-FEI represents the highest capacity option in this series, offering 100 lanes and 52 ports. It shares architectural features with other family members but provides expanded scalability for demanding applications.

Replacement Considerations

Direct substitutes within the same family include PM40084B-FEI, PM40068B-FEI, PM40052B-F3EI, PM40036B-F3EI, and PM40028B-F3EI. These alternatives offer reduced lane counts and port densities while maintaining compatible interface and diagnostic features.