Microchip Technology PCI11414-I/PMX

The PCI11414 integrates a four-lane upstream PCIe interface and a one-lane downstream PCIe interface. Its xHCI host supports one USB 3.2 Gen 2 port and three USB 2.0 ports, while a 2.5 Gbps Ethernet MAC supports RGMII and SGMII-family interfaces to a suitable external PHY. A programmable pin multiplexer maps GPIO and serial peripheral functions to package pins.

The database package is 164-VFQFN Dual Rows, Exposed Pad, and the package register uses 164-VFQFN Dual Rows. Microchip identifies the PMX order code as a 164-pin DRQFN dual-row package with a 13 mm × 13 mm body. Confirm pad geometry and exposed-pad layout from the manufacturer's current PMX drawing; naming similarity is not proof of mechanical interchangeability.

Layout checks

• Check Microchip's 164-pin PMX dual-row DRQFN land pattern and pin-1 orientation.
• Connect the exposed pad and grounds according to the controlled package and hardware-design guidance.
• Maintain specified controlled impedance and coupling for PCIe, USB, and SGMII differential pairs.

The registered JPG is absent locally and returns HTTP 404 on the production site. An accurate online package image is required before publication.

These selected functional groups are described by the PCI11414 hardware-design checklist. Follow its current pin map and multiplexing tables for all 164 terminals.

This summary is not a full pinout. Verify the exact configuration, pin numbers, voltage domains, and unused-pin treatment before schematic release.

These architecture figures are not substitutes for electrical-characteristics, power-sequencing, or timing limits in the current controlled Microchip data sheet.

No device is asserted to be a drop-in replacement. Compare PCIe lane topology, USB port count and speed, Ethernet MAC/PHY interface, Type-C and VBUS management, pin-multiplexer configuration, firmware and driver compatibility, industrial grade, supply domains, and the 164-pin PMX footprint. PCI11414C and other PCI1xxxx variants are not assumed pin- or software-compatible without controlled manufacturer evidence. No unverified internal product link is included.

Microchip Technology's PCI11414 product brief lists PCI11414-I/PMX as a tray-packaged, industrial-temperature 164-pin DRQFN option. The brief provides PCIe, USB, Ethernet, and programmable-I/O architecture; the hardware-design checklist supplies selected signal and clock guidance. Use current Microchip data-sheet revisions and errata for final implementation.

Confirm the full PCI11414-I/PMX order code, industrial temperature grade, tray packaging, Microchip marking, traceability, and current package documentation. Compare the physical dual-row exposed-pad package with the approved land pattern during incoming inspection.

Before release, verify PCIe and USB signal integrity, Type-C/port-power design, Ethernet PHY and timing architecture, clock and reset sequencing, pin multiplexing, firmware and driver support, and the exact PMX land pattern. The package-name difference and missing production JPG require review before publication.