High-Performance 7-Port Gigabit Ethernet Switch with Integrated PHYs: Microchip KSZ9897RTXC-TR

In the realm of modern networking, the demand for robust, high-performance, and highly integrated switching solutions continues to grow across various applications, from industrial automation and enterprise systems to smart infrastructure. The Microchip KSZ9897RTXC-TR stands out as a premier solution, engineered to meet these rigorous demands. This highly integrated 7-port Gigabit Ethernet switch combines advanced features with exceptional power efficiency, making it a cornerstone for next-generation network designs.

At its core, the KSZ9897RTXC-TR is a fully integrated 7-port switch featuring a high-performance non-blocking switching fabric. This architecture ensures wire-speed performance on all ports simultaneously, eliminating bottlenecks and guaranteeing low-latency data transfer—a critical requirement for real-time industrial and multimedia applications. Five of its ports are Gigabit Ethernet (10/100/1000 Mbps) capable, while two additional ports support 10/100 Mbps operation, providing design flexibility for connecting a mix of high-speed and legacy devices.

A key differentiator of this IC is its integrated physical layer transceivers (PHYs). By incorporating the PHYs directly into the switch, Microchip eliminates the need for external PHY components. This integration significantly reduces the total bill of materials (BOM), saves valuable board space, simplifies PCB layout, and enhances overall system reliability. Designers benefit from a streamlined design process and a more compact form factor, which is particularly advantageous in space-constrained applications.

Beyond its core switching functionality, the KSZ9897RTXC-TR is packed with sophisticated features. It offers comprehensive Quality of Service (QoS) capabilities, including priority queues and traffic policing, which are essential for prioritizing time-sensitive data like voice and video. For robust network security, it provides Access Control List (ACL) functionality and IEEE 802.1X port-based authentication, safeguarding network integrity. Furthermore, its support for Energy-Efficient Ethernet (EEE) complies with the IEEE 802.3az standard, dramatically reducing power consumption during periods of low data activity without sacrificing performance.

The device's robust design is tailored for challenging environments. It supports industrial temperature ranges and is built for high reliability, making it an ideal choice for industrial control systems, IP surveillance cameras, and carrier-grade access points. Its management options, accessible via SPI, I²C, or a management MAC, offer developers the flexibility to implement the switch in either managed or unmanaged configurations.

ICGOOODFIND: The Microchip KSZ9897RTXC-TR represents a superior blend of high integration, powerful features, and energy efficiency. It is an optimal choice for developers seeking to build reliable, high-performance networking equipment with a reduced component count and simplified design cycle.

Keywords: Gigabit Ethernet Switch, Integrated PHYs, Quality of Service (QoS), Energy-Efficient Ethernet (EEE), Access Control List (ACL)