VSC8514XMK

Overview

The VSC8514XMK is a low-power Gigabit Ethernet transceiver manufactured by Microchip Technology. It integrates four 10/100/1000BASE-T copper transceivers compliant with IEEE 802.3 standards. The device features a QSGMII SerDes MAC interface and supports Synchronous Ethernet via recovered clock outputs. Key specifications include 1.0 V and 2.5 V power supplies, 3.3 V-tolerant I/Os, and an operating temperature range of 0 °C to 125 °C junction. It utilizes a 138-pin QFN package (12 mm x 12 mm) and incorporates EcoEthernet 2.0 technology for energy efficiency.

Feature Summary

• Integrates four 10/100/1000BASE-T Ethernet copper transceivers with VeriPHY cable diagnostics
• Supports Synchronous Ethernet with Ring Resiliency for master/slave timing switching without link drop
• Features patented voltage mode line driver with integrated line-side termination resistors to reduce EMI and PCB space
• Includes ActiPHY power management and Energy Efficient Ethernet support for optimized power consumption

Applications

• Synchronous Ethernet networks requiring ITU-T G.8261/Y.1361 compliance
• High-availability network infrastructure utilizing fast link failure indication
• Embedded systems requiring compact form factor with integrated line drivers
• Power-over-Ethernet switch designs supporting inline-powered devices

Procurement Notes

Verify the component authenticity through official Microchip channels or authorized distributors. Confirm the specific ordering suffix matches the required package and temperature grade. Ensure proper handling procedures are followed due to moisture sensitivity classification. Review the latest datasheet revision for any updates to electrical characteristics or pin configurations before finalizing procurement orders.

Selection Notes

Select this component when a quad-port Gigabit PHY with QSGMII interface is required. Ensure the system design accommodates the 1.0 V and 2.5 V power domains. Verify that the host MAC supports the QSGMII protocol version specified in the datasheet. Consider the thermal requirements for the 138-pin QFN package under maximum load conditions. Confirm compatibility with the desired reference clock frequencies of 125 MHz or 156.25 MHz.

Part Context

The VSC8514 belongs to the VSC8514 series of Ethernet transceivers from Microchip Technology. It is part of a portfolio designed for communications and data center applications. The device leverages mixed-signal and DSP architecture for robust performance. It is distinct from single-port variants like the VSC8501 and radiation-tolerant models like the VSC8574RT.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip Technology for current equivalent products or family members with compatible interfaces and pinouts.