Microchip LAN7431-I/YXX, Ethernet Controller, 2.5Gbit/s, 1.8 V, 2.5 V, 3.3 V, 72-Pin SQFN

Single-chip, PCIe 3.1 @ 2.5GT/s MII / RGMII Network Controller
PCIe Low Power Sub State LPSS L1.1 (snooze) & L1.2 (off)
Requires only a single 25MHz crystal or single ended clock
9K jumbo frames are supported
Internal OTP memory to remove the need for external EEPROM
RGMII / MII
RGMII v1.3, v2.0 with option for programmable delay
Variable IO power supplies in the range 1v8 to 3v3
IEEE 1588-2008 Precision Time Protocol
IEEE 1588-2008 E2E and P2P one and two step supported
IEEE 1588-2008 Programmable Time Compare output (Eg: 1PPS)
Comprehensive Driver Support
Windows OneCore with WHQL Certification
Linux driver in mainline kernel
Application Examples
PCIe Dual Ethernet Port Example - Using PCIe bridge and Ethernet switch
PCIe Ethernet Development System (EDS)