PM50052B1-FEI

Overview

The PM50052B1-FEI is a Switchtec PFX Gen 5 Fanout PCIe switch supporting 52 lanes, 14 virtual switch partitions, and 28 hot-plug controllers. It features up to 48 nontransparent bridges (NTBs), an ultra-low latency cut-through DMA engine with up to 64 channels, and advanced error containment including AER and DPC. The device operates at PCIe Gen 5 speeds of 32 GT/s and includes an integrated MIPS processor for diagnostics and secure boot image authentication.

Feature Summary

• High-performance non-blocking architecture with logical non-transparent interconnect support
• Advanced error containment mechanisms including downstream port containment and completion timeout synthesis
• Comprehensive diagnostics and debug capabilities via ChipLink tools and real-time eye capture
• Integrated peripherals including TWI, SGPIO, UARTs, and JTAG interfaces

Applications

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

Procurement Notes

Verify the exact part number against official Microchip documentation to ensure correct suffix interpretation. Confirm package type and temperature grade specifications directly from the datasheet before procurement. Cross-reference ordering information tables to validate lane counts and partition limits associated with this specific model variant.

Selection Notes

Select the PM50052B1-FEI when 52 lanes and 14 partitions are required for fanout topologies. Compare against other family members like the PM50100 or PM50036 based on specific lane count needs. Ensure compatibility with required I/O interfaces such as SHPC-enabled slots or optical cables. Evaluate NTB requirements against the maximum assignable limit per port.

Part Context

This component belongs to the Switchtec PFX/PSX Gen 5 Fanout PCIe Switch Family. It shares architectural similarities with variants ranging from 28 to 100 lanes. The family supports high-reliability applications requiring robust error containment and comprehensive diagnostics. All models in this series utilize similar interface standards and management capabilities.

Replacement Considerations

Direct substitutes within the same family include PM50036B1-FEI and PM50068B1-FEI. Verify lane count and partition requirements match the application topology. Ensure software drivers and ChipLink tool compatibility remain consistent across the Gen 5 family variants.