PCI11414-I/PMX

Overview

The Microchip Technology PCI11414-I/PMX is a single-chip PCIe switch integrating a USB 3.2 Gen 2 host controller, Ethernet MAC, 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 with two Type-C ports and three Type-A ports, alongside a 2.5Gbps Ethernet MAC supporting RGMII, SGMII, and SGMII+ interfaces. A programmable pin multiplexer maps I/O functions such as SMBus, SPI, UART, and GPIO. Operating in the industrial temperature range of -40°C to +85°C, it utilizes a 164-pin DRQFN package.

Feature Summary

• PCIe Gen 4 Switch Fabric: 4-lane upstream and 1-lane downstream ports at 8GT/s line rate
• USB 3.2 Gen 2 Host Controller: Integrated xHCI with 2x Type-C and 3x Type-A ports
• Ethernet Connectivity: 2.5Gbps MAC with RGMII, SGMII, and SGMII+ support
• Programmable I/O: Pin multiplexer for SMBus, SPI, UART, and GPIO via PCIe Endpoint Controller

Applications

• Single-Board Computers (SBC)
• AIoT Edge computing
• Industrial PC (IPC)
• Edge appliances
• Storage extensions

Procurement Notes

Verify the ordering suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the '/PMX' suffix corresponds to the 164-pin DRQFN package. Ensure the base part number matches the specific silicon revision required for your design. Check for any applicable errata sheets relevant to the document version DS00003792B.

Selection Notes

Select this component when high-bandwidth PCIe expansion is needed alongside integrated USB and Ethernet connectivity in embedded systems. The industrial temperature rating makes it suitable for harsh environments. Consider the 164-pin DRQFN package constraints and thermal requirements during PCB layout. Verify that the system architecture can accommodate the single downstream port configuration.

Part Context

The PCI11414-I/PMX belongs to the PCI11414 family of PCIe switches. The '-I' designation specifies the industrial temperature range variant, while 'C' denotes commercial grade. The '/PMX' indicates the 164-lead Very Thin Plastic Quad Flat, No Lead package. This model integrates multiple interface protocols into a single chip to reduce bill-of-materials complexity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip sales offices or authorized distributors for alternative components or updated product recommendations.