KSZ8893FQL-FX

Controllers Overview

The KSZ8893FQL-FX is a single-chip 3-port Fast Ethernet switch with integrated fiber support, designed for media conversion applications. It features two 10/100 transceivers compliant with IEEE 802.3u and three MAC units. Port 1 supports 100BASE-FX, 100BASE-SX, and 10BASE-FL fiber standards, while Port 2 supports 10BASE-T and 100BASE-TX copper. The device includes an integrated LED driver and post amplifier for optical modules. It operates on a 1.2V core voltage and 3.3V I/O/transceiver supply, housed in a lead-free 128-pin PQFP package.

Controllers Feature Summary

• Integrated TS-1000 V2 OAM sub-layer for communication between central office and customer premises equipment
• Supports comprehensive Layer 2 management features including VLAN, QoS prioritization, and rate limiting
• Includes LINKMD TDR-based cable diagnostics for identifying faulty copper cabling
• Provides multiple management interfaces including SMI, SPI, I2C, and MII

Controllers Applications

• Media Conversion Modules (10BASE-FL to/from 10BASE-T)
• FTTx Managed/Unmanaged Media Converters
• Fiber Broadband Gateways

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product identification system to ensure correct package and temperature grade. Confirm that the component meets RoHS compliance requirements for your target market. Check for any available errata sheets that may describe minor operational differences or recommended workarounds for the silicon revision being procured.

Controllers Selection Notes

Select this component when fiber connectivity is required on one port alongside standard copper ports. Ensure the design accommodates the 128-pin PQFP footprint and provides the necessary 1.2V and 3.3V power rails. Verify that the host processor can interface via the chosen management protocol, such as SPI or I2C, if managed mode operation is intended.

Controllers Part Context

This part belongs to the KSZ8893 family of highly integrated 3-port switches. The FQL suffix typically denotes the 128-pin PQFP package variant. Other variants in the series may offer different port configurations, such as all-copper PHYs, without the integrated fiber support found in this specific model.

Controllers Replacement Considerations

Consult Microchip Technology for officially confirmed substitute part numbers. Cross-referencing should be limited to components explicitly listed by the manufacturer as compatible replacements.

Controllers FAQ

What fiber standards are supported on Port 1?

Port 1 supports 100BASE-FX, 100BASE-SX, and 10BASE-FL fiber standards.

How does the device handle cable diagnostics?

It utilizes Microchip LINKMD TDR-based cable diagnostics to identify faulty copper cabling.

What is the purpose of the TS-1000 OAM feature?

It provides an OAM sub-layer conforming to TTC TS-1000 V2 specification for communication between center and terminal side devices.