KSZ8993FL

Specialized ICS Overview

The KSZ8993FL is a single-chip Fast Ethernet media converter and integrated switch manufactured by Microchip Technology (originally Micrel). It integrates three MACs, two PHY transceivers, frame buffers, and OAM functions. The device supports 10BASE-T/100BASE-TX to 100BASE-FX conversion with TS-1000 OAM compliance. It operates on a single supply voltage, featuring a 1.8V core and 3.3V I/O/transceiver supplies. The component is housed in a 128-pin PQFP package and supports industrial temperature ranges of 0°C to +70°C.

Specialized ICS Feature Summary

• Integrated 3-Port 10/100 Ethernet Switch with 3 MACs and 2 PHYs
• TS-1000 OAM support for remote loopback and far-end fault detection
• Non-blocking switch fabric with 1K MAC address lookup table
• IEEE 802.1q VLAN support and QoS prioritization

Specialized ICS Applications

• FTTx subscriber access network media conversion
• Carrier center to terminal side management nodes
• Low-cost unmanaged switch designs

Specialized ICS Procurement Notes

Verify the manufacturer origin, as the datasheet indicates Micrel, which was acquired by Microchip. Confirm the specific ordering suffix 'FL' denotes the single-supply version as described in the revision history. Check current availability status as legacy components may have limited stock or end-of-life implications.

Specialized ICS Selection Notes

Select the KSZ8993FL over the KSZ8993F when a single power supply design is required, as the FL variant includes an internal 1.8V regulator output. Ensure the application requires 100BASE-FX connectivity, as this device lacks a third copper PHY found in other KSZ8993 series variants. Verify interface compatibility with SPI, I2C, or MII control requirements.

Specialized ICS Part Context

This component belongs to the KSZ8993 family of Fast Ethernet switches. The 'FL' suffix specifically identifies the single-supply version of the KS8993F/Micrel KSZ8993F media converter. It is distinct from multi-port copper switches like the KSZ8993FQ or KSZ8893 series which include three copper PHYs.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.