VSC8489YJU-01

Overview

The VSC8489YJU-01 is a dual-channel 10 Gigabit Ethernet PHY transceiver manufactured by Microchip Technology. It operates at data rates up to 10 Gb/s and supports the 10GBASE-KR standard for backplane applications. The device features RXAUI/XAUI and MDIO/SPI interfaces for host connectivity. It is housed in a 196-ball FCBGA package with surface mount installation. Operating voltages include 1.2 V and 1 V rails, with a power dissipation of 875 mW. The component functions within a temperature range of -40°C to +110°C and exhibits moisture sensitivity.

Feature Summary

• Dual-channel architecture supporting independent 10 Gb/s transmission paths
• Integrated support for 10GBASE-KR backplane signaling standards
• Flexible interface options including RXAUI/XAUI and MDIO/SPI control protocols

Applications

• High-speed backplane interconnects in networking equipment
• Server and storage system internal links
• Telecommunications infrastructure requiring 10GbE connectivity

Procurement Notes

This component is classified as End-of-Life (EOL) by the manufacturer. Distribution availability is restricted, with some major distributors indicating no sales in specific regions. Verification of current stock status and alternative sourcing channels is required before procurement planning. Lifecycle management strategies should account for discontinuation risks.

Selection Notes

Designers must verify compatibility with the target backplane impedance and signal integrity requirements for 10GBASE-KR. The FCBGA-196 package necessitates appropriate PCB layout considerations for thermal management and signal routing. Interface selection between RXAUI/XAUI and MDIO/SPI should align with the host processor capabilities. Ensure voltage domain alignment with the specified 1.2 V and 1 V supplies.

Part Context

The VSC8489YJU-01 belongs to the VSC8489 family of 10 Gigabit Ethernet PHYs from Microchip Technology. This series targets high-performance networking and server applications requiring reliable 10 Gb/s connectivity over copper backplanes. The part integrates physical layer signaling necessary for compliant 10GBASE-KR operation.

Replacement Considerations

The VSC8489YJU-02 is listed as a potential replacement variant within the same product line. Engineers should consult official documentation to confirm pinout and functional compatibility before substitution.