KSZ8863FLL-TR

Controllers Overview

The KSZ8863FLL-TR is a managed 3-port Ethernet switch IC from Microchip Technology, housed in a 48-pin LQFP package. It integrates two 10/100BASE-T/TX copper transceivers and one 100BASE-FX fiber optic transceiver. The device operates on a single 3.3V supply with an internal 1.8V LDO for the VDDIO domain. It supports data rates of 10 Mb/s and 100 Mb/s across all ports. Management interfaces include SPI, I2C, SMI, and MIIM. The component functions within an industrial temperature range of -40°C to +85°C.

Controllers Feature Summary

• Supports IEEE 802.1q VLAN tagging and filtering with up to 16 groups.
• Includes bypass mode to maintain switching between copper ports during CPU sleep.
• Provides LinkMD cable diagnostics using time domain reflectometry.
• Features IPv4/IPv6 QoS support and per-port rate limiting.

Controllers Applications

• VoIP Phone
• Set-Top/Game Box
• Industrial Control
• SOHO Residential Gateway

Controllers Procurement Notes

Verify that the ordering suffix '-TR' corresponds to the reel packaging format required by your assembly line. Confirm the specific silicon revision matches your design requirements. Ensure the supplier provides valid traceability documentation for the 48-pin LQFP components.

Controllers Selection Notes

Select this model when a mixed media environment requiring both copper and fiber connectivity is necessary. The FLL variant is distinct from MLL and RLL due to its integrated 100BASE-FX port. Verify that the host system can accommodate the 48-pin LQFP footprint and supports the required serial management protocols.

Controllers Part Context

This component belongs to the KSZ8863 family of highly integrated 3-port switches. The FLL designation specifically indicates the inclusion of a fiber optic transceiver alongside standard copper PHYs. This distinguishes it from the MLL (all copper) and RLL (RMII interface) variants within the same product line.

Controllers Replacement Considerations

Public confirmed substitute part numbers: KSZ8863MLL-TR, KSZ8863RLL-TR.