High-Performance Dual-Port Ethernet Switch Solution with Integrated 10/100 PHYs Using the Microchip KSZ8842-16MVLI

The increasing demand for networked devices in industrial automation, enterprise networking, and Internet of Things (IoT) gateways necessitates robust, integrated, and high-performance Ethernet switching solutions. The Microchip KSZ8842-16MVLI stands out as a premier highly-integrated dual-port Ethernet switch IC, specifically engineered to meet these demands by combining a non-blocking switch fabric with two integrated 10/100 physical layer transceivers (PHYs) in a single compact package.

This device is architected around a high-performance switching core that supports full-wire-speed operation on both ports simultaneously, ensuring no internal bottlenecks for maximum data throughput. The integration of the two PHYs is a key advantage, eliminating the need for external physical layer components, which significantly reduces the bill of materials (BOM), board space, and overall system complexity. Each PHY supports both 10BASE-T and 100BASE-TX operations over standard twisted-pair cabling, featuring auto-negotiation and auto-MDI/MDIX for simplified deployment and robust link establishment.

A critical feature of the KSZ8842-16MVLI is its support for advanced Quality of Service (QoS) and traffic prioritization mechanisms. It incorporates multiple priority queues and supports IEEE 802.1p VLAN tags, allowing time-sensitive data, such as voice or control signals, to be prioritized to minimize latency and jitter. This is paramount for industrial and professional applications where deterministic network behavior is required.

The switch also offers robust security and management features. It supports MAC address filtering, port-based access control, and VLAN segmentation to isolate sensitive traffic and enhance network security. Management can be achieved through a standard Serial Management Interface (SMI), providing access to a comprehensive set of control and status registers for detailed network monitoring and configuration.

Furthermore, the device is designed for low-power operation, making it suitable for power-sensitive applications. Its single 3.3V power supply and various power-down modes contribute to an energy-efficient design. Housed in a lead-free 128-pin LQFP package, it is well-suited for the challenging environments typical of industrial applications.

In summary, the KSZ8842-16MVLI provides a complete, cost-effective, and flexible switching solution that simplifies design and accelerates time-to-market for a wide array of embedded networking applications.

ICGOODFIND: The KSZ8842-16MVLI from Microchip is an optimal solution for designers seeking a highly integrated, managed dual-port switch with embedded PHYs, offering a perfect balance of performance, features, and power efficiency for modern connected systems.

Keywords: Integrated PHYs, Dual-Port Switch, Quality of Service (QoS), Network Management, Low Power Operation.