KSZ8462FHLI

Controllers Overview

The KSZ8462FHLI is a two-port, 10/100 Mbps Ethernet switch with IEEE 1588v2 Precision Time Protocol support. It integrates two PHY transceivers supporting 10BASE-T and 100BASE-TX/FX media. The device features an 8- or 16-bit parallel host interface, a non-blocking store-and-forward switch fabric with a 1K entry forwarding table, and 32K bytes of frame buffer. Operating from a single 3.3V supply, it supports industrial temperatures from -40°C to +85°C and is housed in a 64-pin LQFP package.

Controllers Feature Summary

• IEEE 1588v2 PTP hardware timestamping for sub-microsecond synchronization
• Integrated copper and fiber PHY transceivers with auto MDI/MDI-X
• Flexible 8- or 16-bit parallel host interface with queue management unit
• Comprehensive QoS, VLAN tagging, and RSTP support

Controllers Applications

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

Controllers Procurement Notes

Verify the specific ordering suffix matches the required host interface width and package type. Confirm that the fiber-optic variant (FHL) aligns with the physical layer requirements of the target application. Ensure compatibility with the intended operating temperature range and voltage levels before finalizing procurement.

Controllers Selection Notes

Select this component when dual-port switching with hardware-based IEEE 1588v2 timestamping is required. The FHL suffix indicates support for both copper and fiber connections. Consider the available host interface options and GPIO flexibility for system integration needs.

Controllers Part Context

This part belongs to the KSZ8462 EtherSynch product line, designed for industrial applications. It complements other managed switches in the family by offering integrated PHYs and robust synchronization capabilities within a compact footprint suitable for space-constrained embedded designs.

Controllers Replacement Considerations

Consult Microchip documentation for direct pin-compatible alternatives within the KSZ84xx series. Verify functional equivalence regarding IEEE 1588 support and port configurations before substitution.