MCHPKSZ9897RTXI
Overview
The KSZ9897RTXI is a high-performance 7-port Gigabit Ethernet switch designed for industrial networking environments. It integrates five 10/100/1000BASE-T PHYs and two MACs with configurable RGMII/MII/RMII interfaces, providing a non-blocking wire-speed fabric. The device supports advanced features like VLAN, QoS, and IEEE 1588v2 PTP for precise timing synchronization.
Why Choose This Part
The KSZ9897RTXI offers exceptional flexibility through its multiple management interfaces, including SPI, I2C, and MIIM. Its EtherGreen technology reduces power consumption during low traffic, and the industrial temperature rating of -40 to 85 degrees Celsius ensures stability in rugged conditions. Advanced filtering via Access Control Lists (ACL) allows for enhanced security and traffic shaping at the hardware level.
Applications
Key Specifications
Getting Started
Designers can evaluate the chip using the EVB-KSZ9897 evaluation board, which provides access to all ports and configuration headers. Configuration is typically handled via the SPI or I2C bus using Microchip's Switch Management software or through the Linux-based DSA (Distributed Switch Architecture) driver framework. Ensure proper thermal dissipation via the 128-TQFP exposed pad during PCB layout.
