PM50028B1-FEI

Overview

The PM50028B1-FEI is a Switchtec PFX Gen 5 Fanout PCIe switch manufactured by Microchip Technology. It features 28 lanes and supports up to 16 ports with 8 virtual switch partitions. The device operates at PCIe Gen 5 speeds of 32 GT/s and includes hot- and surprise-plug controllers for each port. It utilizes a BBGA-896 surface-mount package and integrates interfaces such as GPIO, UART, and Two-Wire (TWI). The component is designed for high-reliability applications requiring advanced error containment and comprehensive diagnostics.

Feature Summary

• Supports logical non-transparent interconnects allowing for larger topologies and up to 48 assignable NTBs
• Integrates an ultra-low latency cut-through DMA engine with up to 64 channels
• Provides advanced error containment including AER, DPC, and Completion Timeout Synthesis
• Includes real-time eye capture and external loopback capabilities for diagnostics

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 ensure correct configuration. Confirm that the required evaluation kit, such as the PM52100-KIT, is available if system testing is planned. Ensure compatibility with host systems supporting PCIe Gen 5 standards before procurement.

Selection Notes

Select this model when a 28-lane fanout topology is required within the Switchtec PFX family. Compare lane counts and partition limits against other variants like the PM50036 or PM50052 to match system bandwidth requirements. Verify that the integrated MIPS processor and I/O interface options align with the target application's control needs.

Part Context

This component belongs to the Switchtec PFX/PSX Gen 5 Fanout PCIe Switch Family. It shares architectural similarities with higher-lane variants such as the PM50036 and PM50052, offering consistent error handling and diagnostic features across the series while differing in total lane capacity and port count.

Replacement Considerations

Direct substitutes within the same family include the PM50028B1-EI. Other variants like the PM50036B1-FEI offer increased lane counts but maintain similar functionality.