PM42052B1-F3EI

Overview

The PM42052B1-F3EI is a Gen 4 Advanced Fabric PCIe switch from the Switchtec PAX family, providing high-performance connectivity for multi-host systems. It features 52 lanes and 28 ports with hot-plug controllers. The device supports up to 174 GBps switching capacity and allows flexible port bifurcation to x1, x2, x4, x8, or x16 configurations. It includes an integrated MIPS processor, advanced error containment mechanisms like AER and DPC, and comprehensive diagnostics tools.

Feature Summary

• Supports multi-host sharing of SR-IOV endpoints and virtualization of entire PCIe domains
• Features advanced error containment including Downstream Port Containment (DPC) and Completion Timeout Synthesis (CTS)
• Includes an integrated MIPS processor and extensive I/O interfaces for enclosure management
• Provides comprehensive diagnostics with real-time eye capture and built-in PCIe analyzer

Applications

• Scalable multi-host systems
• SR-IOV-enabled JBOFs
• Composable GP-GPU fabrics
• Disaggregated systems
• Rack scale architectures

Procurement Notes

Verify the exact ordering suffix against the manufacturer's official documentation to ensure correct package dimensions and thermal characteristics. Confirm that the specific variant matches the required lane count and port configuration for the target system design before finalizing procurement orders.

Selection Notes

Select this model when a 52-lane, 28-port Gen 4 PCIe switch is required for fabric-based topologies. Ensure the application benefits from its non-blocking switching architecture and integrated management capabilities compared to traditional tree-based PCIe switches.

Part Context

This component belongs to the Switchtec PAX Gen 4 Advanced Fabric PCIe Switch family, which also includes variants with 100, 84, 68, 36, and 28 lanes. The family shares a common system-on-chip architecture designed for high-reliability and programmable solutions in data center environments.

Replacement Considerations

Direct replacements within the same family include PM42036B1-F3EI and PM42028B1-F3EI for lower lane counts. For automotive applications, consider the PM45052B1-F3EI variant which offers equivalent specifications with automotive qualification.