Intel WGI219V Gigabit Ethernet Controller I219-V Single Port PCIe GbE LAN Chip QFN-48

WGI219V Product Overview

The Intel Ethernet Connection WGI219V is a high-performance, low-power single-port Gigabit Ethernet controller from Intel, part of the I219-V series. Housed in a 48-pin QFN (6×6mm) compact package， the WGI219V is the mainstream desktop platform Gigabit Ethernet connectivity solution in the I219 series. The WGI219V integrates a complete Gigabit Ethernet MAC controller and PHY， supporting 10/100/1000Mbps auto-negotiation with RJ-45 interface twisted-pair connectivity. As a key member of Intel's I219 series Ethernet controller family, the WGI219V is specifically designed to meet the high cost-performance Gigabit networking demands of mainstream desktops, workstations, and motherboard integrated applications.

WGI219V Key Features

The WGI219V embodies Intel's deep expertise in mainstream desktop networking through its robust hardware architecture and feature set. It offers a fully integrated single-port Gigabit MAC and PHY supporting 10/100/1000 Mbps data rates， compliant with 10/100/1000 BASE-T IEEE 802.3 specifications. The WGI219V features a Proprietary system interface and supports Jumbo Frame transmission. The WGI219V supports 1000Base-T network interface. The WGI219V features a separate PHY and MAC architecture. The WGI219V operates within a temperature range of 0℃ to 85℃. The WGI219V is available in Tape & Reel (spec code SLKJ4) and Tray (spec code SLKJ5) packaging， with Stepping A0.

WGI219V Applications

With its high cost-performance ratio, compact package, and stable performance, the WGI219V is widely deployed in mainstream networking applications. As a core controller, the WGI219V is an ideal component for mainstream desktop motherboards. The WGI219V is also widely used in workstation and server motherboards. Additionally, the WGI219V excels in embedded systems, industrial control equipment, digital signage, and kiosks. The WGI219V is the non-vPro variant， offering a cost-effective alternative to WGI219LM (vPro supported)  for projects without remote management requirements. The WGI219V has been widely adopted in NUC mini PCs, B760 chipset motherboards, and other products.

WGI219V Key Advantages

The WGI219V stands out as a mature, commercially available mainstream single-port Gigabit Ethernet controller that strikes an excellent balance between performance, cost, and integration. Housed in a 48-pin QFN (6×6mm) compact package， the WGI219V delivers complete Gigabit Ethernet functionality while minimizing PCB footprint. The WGI219V has a recommended customer price (RCP) of only $2.06， providing a highly cost-effective Gigabit networking solution for mass deployment. The WGI219V supports an operating temperature range of 0℃ to 85℃. Intel provides comprehensive driver support for the WGI219V across Windows, Linux, and other mainstream operating systems.

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FAQs:

1 What is the WGI219V S LKJ4 chip
It is a Gigabit Ethernet network controller chip from Intel that integrates both the Ethernet MAC and PHY transceiver layers and is commonly used in high performance PC motherboards and industrial control boards.

2 What network speeds does this chip support
It supports auto negotiation of 10Mbps, 100Mbps, and 1000Mbps Gigabit Ethernet speeds and is fully compliant with mainstream Gigabit network standards.

3 What package and pin count does it use
It uses a QFN48 no lead surface mount package with 48 pins and a standard footprint of 9 by 9 millimeters. It features an exposed thermal pad on the bottom for a compact design.

4 What host bus interface does it support
It supports high speed data exchange with the host controller via the PCI Express bus and is typically interconnected with the PCH chipset on mainstream PC motherboards.

5 What are the operating voltage and temperature ranges
It utilizes a multi voltage domain power supply design including independent rails such as 1.0V, 1.8V, and 3.3V. The standard commercial temperature range is from 0 degrees Celsius to plus 70 degrees Celsius.

6 What application scenarios is this chip suitable for
With its high cost effectiveness and excellent compatibility, it is widely used in desktop and laptop motherboards, industrial automation control PCs, POS terminals, and various embedded devices requiring stable Gigabit networking.

7 What advanced network features does it support
It supports the IEEE 802.3az Energy Efficient Ethernet standard, VLAN tagging, hardware packet checksum offloading, and is commonly found on platforms supporting Intel vPro/AMT remote management technology.

8 What are the main differences compared to the WGI210 series
The WGI219V is typically tightly coupled with Intel chipsets and is mostly used in consumer or commercial office motherboards, whereas the WGI210 series is a standalone universal controller used in servers and complex industrial environments and supports enterprise features such as Jumbo Frames.

9 What are the PCB design considerations for the QFN48 package
The exposed thermal pad on the bottom must be reliably grounded to a large copper area for heat dissipation. The Ethernet differential traces must strictly follow 100 ohm impedance matching and equal length routing, and decoupling capacitors must be placed near the power pins.

10 Does this chip require an external PHY chip for operation
No, it does not. The chip integrates a complete Ethernet PHY transceiver internally, so only an external magnetic isolation transformer and a standard RJ45 connector are required to build a complete wired network port.