MCHPLAN8804/ZMXC1
Overview
The LAN8804 is a high-performance quad-port Gigabit Ethernet transceiver designed for dense networking applications. It features a QSGMII interface to reduce pin count and supports Time Sensitive Networking (TSN) frame preemption for deterministic communication. This 128-pin TQFP device integrates advanced cable diagnostics and multiple power-down modes to optimize energy efficiency in multi-port designs.
Why Choose This Part
The quad-port integration significantly reduces PCB footprint compared to four discrete PHYs, while the QSGMII interface minimizes signal routing complexity to the MAC. It provides robust diagnostic capabilities through LinkMD TDR-based cable testing and a built-in die temperature monitor for system health tracking.
Applications
Key Specifications
Getting Started
Designers should leverage the LAN8804 evaluation board (EVB-LAN8804) to validate port performance and QSGMII signal integrity. Configuration is managed via the standard MDIO/MDC interface, and Microchip provides Linux drivers and a software development kit to accelerate driver integration.
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