KSZ8463MLI

Controllers Overview

The KSZ8463MLI is a three-port, 10/100 Mbps managed Ethernet switch IC manufactured by Microchip Technology. It integrates two IEEE 802.3-compliant PHY transceivers for copper connections and one Media Access Control (MAC) port supporting MII or RMII interfaces. The device features a non-blocking store-and-forward switching fabric with a 1024-entry forwarding table and 32K frame buffer. It supports the IEEE 1588v2 Precision Time Protocol for sub-microsecond synchronization. Operating on a single 3.3V supply, it functions within an industrial temperature range of -40°C to +85°C and is housed in a 64-pin LQFP package.

Controllers Feature Summary

• Supports IEEE 1588v2 Precision Time Protocol with hardware timestamping and transparent clock capabilities.
• Integrates two 10/100BASE-TX PHY transceivers with HP Auto MDI/MDI-X support.
• Provides flexible host connectivity via MII or RMII interface on the third MAC port.
• Includes comprehensive power management features such as Energy Efficient Ethernet and bypass mode.

Controllers Applications

• Industrial Ethernet networks requiring sub-microsecond synchronization.
• IEC 61850 power substation automation systems.
• Real-time motion control and networked measurement equipment.

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with required voltage levels and interface configurations. Confirm that the component meets all necessary regulatory standards for the intended deployment environment before finalizing procurement orders.

Controllers Selection Notes

Select this component when a managed switch solution with integrated PHYs and precise time synchronization is required. Ensure the design accommodates the 64-pin LQFP footprint and provides adequate thermal dissipation for the specified operating temperature range.

Controllers Part Context

This part belongs to the KSZ8463 EtherSynch product line from Microchip Technology. The family includes variants supporting fiber optics and reduced media independent interfaces, offering flexibility for various industrial networking topologies.

Controllers Replacement Considerations

Consult official Microchip documentation for confirmed substitute part numbers. Verify pinout and register compatibility before integrating any alternative components into existing designs.

Controllers FAQ

What types of interfaces are supported on the third port?

The third port supports both Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) modes.

Does the device support fiber optic connections?

No, the KSZ8463MLI variant specifically supports copper connections only. Fiber support is available in the KSZ8463FML/FRL variants.

How does the device handle host processor failure?

It features a bypass mode that sustains switching between Port 1 and Port 2 even when the CPU connected to Port 3 enters sleep mode or fails.