VSC8574EV

Overview

The VSC8574EV is a quad-port dual media Gigabit Ethernet PHY transceiver designed for Carrier Ethernet applications. It integrates four 10/100/1000BASE-T copper transceivers and supports SGMII and QSGMII MAC interfaces. The device operates with a 1.0 V core supply and a 2.5 V I/O supply, housed in a 17 mm × 17 mm ball grid array package. It features integrated IEEE 1588v2 timing packet engines, recovered clock outputs, and EcoEthernet 2.0 technology for energy efficiency.

Feature Summary

• Supports single and two-step IEEE 1588v2 time stamping over encapsulated links including MPLS and PBB.
• Integrates four dual media ports supporting both copper and fiber interfaces with unidirectional IEEE 802.3ah support.
• Provides programmable clock squelch control and fast link failure indication for Synchronous Ethernet redundancy.
• Includes integrated temperature monitoring and LED brightness control capabilities.

Applications

• Wireless backhaul systems
• Carrier Ethernet cellular base stations
• Industrial automation systems

Procurement Notes

Verify the specific suffix against official Microsemi documentation to confirm pinout and electrical characteristics. Confirm current availability status as product lifecycles may change. Ensure compatibility with required voltage levels and interface standards before integration into final designs.

Selection Notes

Select this component for designs requiring precise timing synchronization via IEEE 1588v2 and Synchronous Ethernet. Consider its low power consumption features for energy-sensitive deployments. Verify that the 17 mm x 17mm BGA package fits the board layout constraints and thermal requirements of the target application.

Part Context

This part belongs to the VSC8574 family of Carrier Ethernet PHYs from Microsemi. It is engineered to simplify timing distribution in high-performance networking equipment. The device serves as a bridge between MAC processors and physical network media, offering robust diagnostic and management features.

Replacement Considerations

Consult official Microsemi documentation for verified substitute part numbers within the same family or compatible series. Ensure any replacement maintains identical interface protocols and timing accuracy specifications.

FAQ

Does the VSC8574 support ring resiliency?

Yes, it supports ring resiliency, allowing PHY ports to switch between master and slave timing without interrupting the 1000BASE-T link.

What encapsulation links are supported for timestamping?

It supports single and two-step IEEE 1588v2 time stamping over encapsulated links including IP over MPLS, Ethernet pseudowire over MPLS/MPLS-TP, QinQ, and MAC-in-MAC.

How does the device manage power consumption?

It utilizes EcoEthernet 2.0 technology, including ActiPHY automatic link powerdown and PerfectReach intelligent algorithms, to reduce power across all link speeds.