Microchip KSZ8463RLI: Advanced 3-Port Ethernet Switch with Integrated MAC and PHY

In the rapidly evolving landscape of industrial and enterprise networking, the demand for compact, highly integrated, and power-efficient solutions is greater than ever. Addressing this need, the Microchip KSZ8463RLI stands out as a highly advanced 3-port Ethernet switch that integrates both MAC (Media Access Control) and PHY (Physical Layer) functions into a single, robust chip. This integration is pivotal for simplifying design, reducing board space, and lowering overall system cost while delivering high performance and reliability.

The KSZ8463RLI is designed to serve as a core networking component in a wide array of applications, including industrial automation, IoT gateways, networked sensors, and smart grid infrastructure. Its architecture features three fully integrated 10/100 Mbps Ethernet ports. Two of these ports incorporate both MAC and PHY layers, enabling direct connection to standard Ethernet cables. The third port is a dedicated MAC-only interface, which provides designers with the flexibility to connect to an external PHY or another MAC controller, such as those found in host processors or FPGAs. This design offers significant versatility for complex system architectures.

A key strength of this switch IC is its sophisticated Quality of Service (QoS) and traffic management capabilities. It supports priority queues and can classify incoming packets based on VLAN tags, IP headers, or other specified criteria. This ensures that time-critical data, such as control signals in an automated production line, is prioritized, thereby minimizing latency and jitter—a critical requirement for real-time industrial communication.

Furthermore, the device boasts advanced security and management features. It supports IEEE 1588 Precision Time Protocol (PTP) for precise clock synchronization across a network, which is essential for time-sensitive applications like power utility substations and synchronized motor control. For robust network management, the KSZ8463RLI includes comprehensive MAC filtering and access control list (ACL) capabilities, helping to secure the network from unauthorized access and potential threats.

Power efficiency is another hallmark of this switch. It leverages advanced power-saving modes, including energy-detect power-down and wake-on-LAN support, making it an excellent choice for power-conscious applications. Housed in a compact 64-pin QFN package, the KSZ8463RLI is built to operate reliably across the extended industrial temperature range (-40°C to +85°C), ensuring stable performance in harsh environments.

ICGOODFIND: The Microchip KSZ8463RLI is a superior, highly integrated solution that effectively consolidates critical networking functions. Its blend of integrated MAC/PHY ports, flexible configuration, robust management features, and industrial durability makes it an exceptional choice for developers aiming to build efficient, reliable, and future-proof networked devices.

Keywords: Integrated MAC/PHY, Quality of Service (QoS), Industrial Ethernet, IEEE 1588 Precision Time Protocol, Power Efficiency.