PCI11400-I/MXX

Overview

The Microchip PCI11400-I/MXX is a single-chip PCIe switch integrating a USB 3.2 Gen 2 host controller and programmable I/O. It features a 4-lane (4x8GT/s) upstream port and a 1-lane (1x8GT/s) downstream port, certified for PCIe Gen 4 compliance. The device includes an xHCI-compliant USB 3.2 Gen 2 host controller with two 10Gbps PHYs and four USB 2.0 HS/FS/LS PHYs. It supports up to 512-byte maximum payload sizes and operates within the -40°C to +85°C industrial temperature range in a 132-pin DRQFN package.

Feature Summary

• PCIe Gen 4 (8GT/s) switch fabric with 4-lane upstream and 1-lane downstream ports
• Integrated xHCI USB 3.2 Gen 2 host controller supporting Type-C and Type-A configurations
• Programmable pin multiplexer for flexible I/O mapping including SMBus, SPI, UART, and GPIO
• Comprehensive power management with PCIe 3.1 LPSS support and integrated power-on reset

Applications

• Single-Board Computers (SBC)
• Industrial PC (IPC)
• Edge gateways
• Storage extensions

Procurement Notes

Verify the ordering suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the 'MXX' suffix corresponds to the 132-pin DRQFN package. Standard packaging is tray; tape and reel options require a 'T' suffix. Ensure compatibility with major operating systems via standard software abstractions.

Selection Notes

Select this component for embedded applications requiring high-bandwidth PCIe connectivity alongside USB 3.2 host capabilities. The integrated clock farm reduces external BOM by requiring only a single 25MHz crystal or clock source. Consider the programmable pin multiplexer for custom signal routing needs. Verify thermal requirements against the industrial grade specification.

Part Context

The PCI11400 series addresses the need for higher bandwidth PCIe subsystems in embedded systems. It combines switching, USB hosting, and programmable I/O into one chip. The -I/MXX designation specifies the industrial temperature variant in the 132-pin DRQFN package. This integration simplifies system architecture by reducing the number of discrete interface components required.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.