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Intel® 82574L/82574IT Gigabit Ethernet Controller: Product BriefLow-Power, Small-Footprint, Single-Port Gigabit Network Connectivity with Advanced Performance FeaturesSimple 10/100/1000 PCI-Express* (PCIe) x1 ConnectivityThe Intel® 82574L/IT Gigabit Ethernet Controllers provide a pathway from legacy PCI/PCIx designs to higher performing PCIe-based designs. These single-port Controllers use a PCIe one lane (x1) interface operating at 2.5 GHz. The Intel 82574L/IT Gigabit Ethernet Controllers provide fully integrated Gigabit Ethernet Media Access Control (MAC) and Physical-Layer (PHY) capabilities that can be configured for either 1000 Mb/s or 10/100 Mb/s modes of operation. Some optional PCIe extensions are also supported in the Controllers to enhance platform capabilities for specific usage modes. Each Controller provides MDI (Copper) standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE-TX, and 10BASE-T applications (802.3, 802.3u, and 802.3ab). The Intel 82574L/IT also enables a quick migration from custom interconnects to Ethernet.Architected for Small-Footprint, Low-Power DesignsThe Intel 82574L/IT Gigabit Ethernet Controllers are ideal for GbE implementations on small form-factor Embedded designs as well as Client and Server LAN on Motherboard (LOM) configurations. This very small 9mm x 9mm, 64-pin, QFN (Quad Flatpack No-lead) silicon package provides a 40% reduction in total footprint over the previous generation. The Intel 82574L/IT Gigabit Ethernet Controllers consume less than 710mW in GbE mode and less than 300mW in 10/100 mode. The robust design also incorporates optional internal voltage regulation which can reduce the number of voltage supplies required from the platform to power core and I/O functions. Support of D0 and D3 power states is provided as well as Smart power-down at S0 no link and Sx no link. Support of PCIe power management wake up and Advanced power management (APM) wake up using special packets is provided as well as LAN disable function.Read the full Intel® 82574L/82574IT Gigabit Ethernet Controller Product Brief.