KSZ8993M-TR

Specialized ICS Overview

The KSZ8993M-TR is a Layer 2 managed switch IC from the KSZ8993 series, manufactured by Microchip Technology. It integrates three MAC units and two 10/100 Mbps PHY transceivers with an on-chip frame buffer memory. The device supports 10BASE-T, 100BASE-TX, and 100BASE-FX (on Port 1) standards. It operates at a core voltage of 1.8V and I/O/transceiver voltage of 3.3V, with a maximum power dissipation of 800 mW. The component is housed in a 128-pin PQFP package and functions within a commercial temperature range of 0°C to +70°C.

Specialized ICS Feature Summary

• Integrated 3-port architecture with two PHYs and three MACs compliant with IEEE 802.3u.
• Supports comprehensive management features including VLAN (IEEE 802.1q), QoS (802.1p/DiffServ), and IGMP snooping.
• Offers multiple configuration interfaces: SPI, I2C, SMI, MIIM, and MII/SNI.
• Includes advanced switching capabilities such as port mirroring, rate limiting, broadcast storm protection, and spanning tree protocol support.

Specialized ICS Applications

• Broadband gateways, firewalls, and VPN appliances.
• Integrated DSL or cable modem multi-port routers.
• Wireless LAN access points combined with gateway functionality.
• Residential and enterprise VoIP gateways and phones.
• Set-top boxes, game consoles, and home networking expansion devices.

Specialized ICS Procurement Notes

Verify that the ordering suffix '-TR' corresponds to the Tape & Reel packaging format as indicated in local product fields. Confirm the specific revision level against the manufacturer's datasheet Rev 1.06 to ensure compatibility with required pin configurations and electrical characteristics. Check for any lead-free compliance documentation if RoHS adherence is mandatory for the target assembly process.

Specialized ICS Selection Notes

Select this component for low port count, cost-sensitive 10/100 Mbps switch systems requiring managed Layer 2 features. Ensure the design accommodates the dual-voltage requirement (1.8V core and 3.3V I/O). Consider the 128-PQFP package dimensions (14x20 mm) for PCB layout constraints. If industrial temperature operation (-40°C to +85°C) is required, verify availability of the 'I' suffix variant instead of the standard commercial grade.

Specialized ICS Part Context

The KSZ8993M is part of the KSZ8993 family, originally developed by Micrel Inc. before being acquired by Microchip Technology. It serves as a highly integrated solution for Fast Ethernet applications, combining physical layer transceivers with media access control and switching fabric. The device is designed to operate without processor intervention in unmanaged modes via strapping pins, while offering full register access for managed network deployments.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Designers should consult official Microchip documentation for potential obsolescence notices or recommended upgrades within the KSZ89xx series.