PM40052B1-F3EI

Overview

The PM40052B-F3EI is a Switchtec PFX Gen 4 Fanout PCIe switch supporting 52 lanes and 28 ports. It features up to 26 virtual switch partitions and 26 non-transparent bridges (NTBs). The device supports PCIe Gen 4 at 16 GT/s with port bifurcation options of x1, x2, x4, x8, or x16. It includes advanced error containment mechanisms such as AER, DPC, and CTS, alongside hot- and surprise-plug controllers for each port. Peripheral interfaces include TWI, SGPIO, UART, JTAG, and an Ethernet MAC.

Feature Summary

• Supports up to 26 virtual switch partitions and 26 NTBs for flexible topology management
• Includes advanced error containment with AER, DPC, and CTS capabilities
• Features per-port hot- and surprise-plug controllers for enhanced reliability
• Provides comprehensive diagnostics including real-time eye capture and loopback modes

Applications

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

Procurement Notes

Verify the specific ordering suffix F3EI against official Microchip documentation to confirm pinout and package configuration. Ensure compatibility with required PCIe Gen 4 link speeds and bifurcation settings. Check humidity sensitivity levels and storage conditions prior to assembly. Confirm RoHS compliance status through the manufacturer's latest environmental declarations.

Selection Notes

Select this model when 52 lanes and 28 downstream ports are required within a single switch fabric. Consider the PFX family variants if higher lane counts like 84 or 100 are needed. Evaluate the need for virtual partitions and NTBs to determine if this capacity matches system isolation requirements. Compare power consumption and board space savings against alternative switch solutions.

Part Context

This component belongs to the Switchtec PFX Gen 4 Fanout PCIe Switch Family, which also includes models PM40100, PM40084, PM40068, PM40036, and PM40028. These switches are designed for high-reliability applications requiring extensive port expansion and robust error handling in complex server and networking environments.

Replacement Considerations

PM40052B-FEI is a related variant within the same family. Verify if the F3EI suffix denotes a specific package or feature set change before substitution. Consult the datasheet for pin-to-pin compatibility and electrical parameter alignment.