Microchip KSZ9893RNXI-TR: A 7-Port Gigabit Ethernet Switch IC for Advanced Networking Applications

The relentless growth of connected devices and data-intensive applications demands robust, high-performance networking infrastructure. At the heart of many modern systems lies the Ethernet switch, a critical component for managing data traffic. The Microchip KSZ9893RNXI-TR stands out as a highly integrated, feature-rich 7-port Gigabit Ethernet switch IC designed to meet the challenges of advanced industrial, enterprise, and carrier-grade applications.

This system-on-chip (SoC) solution integrates a high-performance non-blocking switch fabric, seven 10/100/1000 Mbps Ethernet PHYs, and a wealth of advanced management features. Its architecture supports a flexible mix of port configurations, typically featuring five integrated Gigabit PHYs, two additional MAC ports that can be interfaced to external PHYs or a host processor via RGMII/MII/RMII interfaces. This flexibility allows designers to tailor the switch for a wide array of applications, from multi-port switches and industrial control systems to network interface cards and IP cameras.

A key strength of the KSZ9893RNXI-TR is its comprehensive suite of advanced networking and security features. It supports IEEE 1588v2 Precision Time Protocol (PTP) for precise time synchronization—a critical requirement for industrial automation and telecommunications. Quality of Service (QoS) is ensured through sophisticated traffic classification and prioritization mechanisms, including four priority queues per port and DiffServ support, guaranteeing low latency for time-sensitive data. For robust security, the IC offers features like Access Control Lists (ACL), IEEE 802.1X port-based authentication, and secure management frames to protect the network from unauthorized access and attacks.

Designed for reliability, the KSZ9893RNXI-TR includes support for various resiliency protocols including IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) and link fault signaling, ensuring rapid network reconvergence in case of a link failure. Its industrial temperature range qualification makes it suitable for harsh operating environments. Furthermore, it offers multiple power-down modes for enhanced energy efficiency, aligning with modern eco-design standards.

ICGOOFIND: The Microchip KSZ9893RNXI-TR is a powerful and versatile 7-port Gigabit Ethernet switch IC that delivers high integration, advanced feature sets, and industrial robustness. It is an ideal solution for designers building next-generation networking equipment that requires high throughput, stringent security, precise timing, and unwavering reliability.

Keywords: Gigabit Ethernet Switch, Advanced Networking, Industrial Applications, Precision Time Protocol (PTP), Quality of Service (QoS)