VSC8514XMK-11

Overview

The VSC8514XMK-11 is a quad-port Gigabit Ethernet transceiver manufactured by Microchip Technology. It integrates four 10/100/1000BASE-T copper media interfaces compliant with IEEE 802.3 standards. The device connects to a host MAC via a Quad Serial Gigabit Media Independent Interface (QSGMII) using SerDes technology. Power requirements include 1.0V and 2.5V supplies, with 3.3V-tolerant I/Os. It operates within an ambient temperature range of -40°C to 125°C junction or 0°C to 125°C junction. The component is housed in a 138-pin, 12mm x 12mm multi-row plastic QFN package.

Feature Summary

• Integrates four 10/100/1000BASE-T Ethernet copper transceivers with VeriPHY cable diagnostics
• Supports EcoEthernet 2.0 technology for Energy Efficient Ethernet and power saving features
• Features a patented low EMI voltage mode line driver with integrated line-side termination resistors
• Includes ActiPHY power management and HP Auto-MDIX support

Applications

• Gigabit Ethernet switches and routers
• Industrial networking equipment requiring extended temperature ranges
• Power over Ethernet (PoE) enabled network infrastructure
• Embedded systems utilizing QSGMII MAC interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct package and temperature grade. Confirm that the 138-QFN footprint matches the design layout. Check for RoHS compliance status as defined in the official documentation before finalizing procurement orders.

Selection Notes

Select this component when a single IC solution is required for four copper Ethernet ports connected via QSGMII. Ensure the host system supports the necessary 1.0V and 2.5V power rails. Verify that the PCB layout accommodates the 12x12mm QFN package and thermal requirements for the intended operating environment.

Part Context

This part belongs to the VSC8514 family of Gigabit Ethernet PHYs from Microchip Technology. It is designed to replace older discrete PHY solutions by integrating multiple ports into a single chip. The XMK-11 designation specifies the commercial/industrial temperature variant and the specific QFN packaging configuration.

Replacement Considerations

Consult the Microchip migration guide for direct replacements within the VSC85xx series. Verify pin-to-pin compatibility if substituting with other VSC8514 variants. Ensure software drivers are updated to support the specific register configurations of the replacement part.