VSC8489YJU-17

Telecom Overview

The VSC8489YJU-17 is a dual-channel Ethernet PHY designed for WAN, LAN, and backplane applications. It converts RXAUI/XAUI interfaces to SFP+ or 10GBASE-KR physical media. The device integrates VeriTime technology for IEEE 1588 precision time protocol support. It operates with data rates of 1 Gb/s and 10 Gb/s across two transceivers. Management is handled via MDIO/SPI and Two-Wire serial interfaces. Power supply requirements include 1 V and 1.2 V rails. The component functions within an operating temperature range of -40 C to +110 C.

Telecom Feature Summary

• Supports conversion between host-side RXAUI/XAUI interfaces and optical SFP+ or copper backplane connections.
• Integrates hardware timestamping capabilities compliant with IEEE 1588v2 standards for network synchronization.
• Includes built-in physical medium attachment functions such as forward error correction and clock recovery.

Telecom Applications

• Transparent Clock line card implementations
• Boundary Clock line card deployments
• SFP+ optical module integration

Telecom Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product lifecycle status before procurement. Confirm that the package type matches the target PCB footprint design. Ensure all voltage domains are correctly sequenced during power-up to prevent latch-up conditions. Validate interface signal integrity for high-speed serial lanes prior to final assembly.

Telecom Selection Notes

Select this component when dual-channel 10 Gigabit connectivity with precise timing synchronization is required. Ensure the host system supports the necessary RXAUI or XAUI signaling protocols. Verify that the application environment remains within the specified thermal operating limits. Confirm compatibility with the intended management bus configuration for register access.

Telecom Part Context

This part belongs to the VSC8489 family of Ethernet transceivers manufactured by Microchip Technology. It serves as a specialized PHY solution for high-speed networking infrastructure requiring deterministic latency and time-stamping accuracy.

Telecom Replacement Considerations

Consult official documentation for direct pin-compatible substitutes. Verify functional equivalence regarding IEEE 1588 block operations and interface speeds before substitution.