PM41036B-F3EI

Overview

The PM41036B-F3EI is a Switchtec PSX Gen4 Programmable PCIe Switch supporting 36 lanes and 20 ports with 18 Non-Transparent Bridges. It features up to 10 virtual switch partitions, hot-plug controllers for each port, and advanced error containment including AER, DPC, and CTS. The device integrates a MIPS processor, NVMe-MI enclosure management, and high-speed I/O interfaces such as TWI, UART, JTAG, and Ethernet MAC.

Feature Summary

• Supports flexible port bifurcation to x1/x2/x4/x8/x16 configurations without restrictions on upstream/downstream mapping or NTB assignment.
• Integrates an ultra-low latency DMA engine and comprehensive diagnostics including real-time eye capture and external loopback capabilities.
• Provides NVMe-MI enclosure management with in-band SES support and out-of-band MCTP through I2C.
• Includes secure system solutions with boot image authentication and extensive peripheral I/O interfaces.

Applications

• PCIe SSD enclosures
• Flash arrays
• Multi-host architectures
• High-density servers

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct package type and temperature range compatibility. Confirm that the selected variant meets the required lane count and partitioning needs for the target application design.

Selection Notes

Select this model when 36 lanes and 20 ports are sufficient for the system topology. Consider higher-lane variants like the PM41052B-F3EI if additional ports or NTBs are required. Ensure the design supports the necessary peripheral interfaces and power management requirements specified in the datasheet.

Part Context

This component belongs to the Switchtec PSX Gen4 family, which offers programmable PCIe switching solutions for high-reliability applications. The family includes variants ranging from 28 to 100 lanes, providing scalable options for data center and embedded computing environments requiring robust error handling and low-latency performance.

Replacement Considerations

Direct replacements within the same family include PM41052B-F3EI (52 lanes) or PM41028B-F3EI (28 lanes). Verify pinout and software compatibility before substitution. Cross-family migration requires re-evaluation of firmware and hardware design constraints.