KSZ8895FMQ TR

Controllers Overview

The KSZ8895FMQ is a Layer 2 managed, five-port Ethernet switch IC manufactured by Microchip Technology. It integrates three 10/100Base-T/TX transceivers on Ports 1, 2, and 5, alongside two 100Base-FX transceivers on Ports 3 and 4. The device supports MII and RMII interfaces for CPU connectivity via SW5-MII/RMII and P5-MII/RMII. It operates within a commercial temperature range of 0°C to +70°C and utilizes a 128-pin PQFP package.

Controllers Feature Summary

• Supports IEEE 802.1q VLAN with up to 128 active groups and per-port tag insertion or removal.
• Provides programmable rate limiting at ingress and egress ports with jitter-free packet-based control.
• Includes comprehensive management interfaces including SPI, I2C master, and SMI for register access.
• Features integrated power management with hardware/software power-down modes and energy-detect capability.

Controllers Applications

• VoIP phone systems
• Set-top boxes and game consoles
• Industrial control networks
• IPTV Point of Presence (POF) equipment
• SOHO residential gateways

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm the exact temperature grade and package variant. Ensure compatibility with the required interface configuration, as the FMQ model specifically includes fiber optic transceivers. Confirm lead times and availability directly with authorized distributors prior to finalizing procurement plans.

Controllers Selection Notes

Select the KSZ8895FMQ when a mixed copper and fiber port configuration is required for cost-sensitive applications. This model provides three RJ-45 ports and two fiber ports, distinguishing it from the all-copper MQ and RQ variants. Verify that the system design accommodates the 128-pin PQFP footprint and meets the commercial temperature requirements.

Controllers Part Context

The KSZ8895 family consists of three distinct models: KSZ8895MQ, KSZ8895RQ, and KSZ8895FMQ. While all share the same core switching fabric and management features, they differ in physical layer configurations. The FMQ variant is unique in its inclusion of 100Base-FX fiber transceivers, catering to applications requiring optical connectivity alongside standard twisted-pair Ethernet.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer for updated component recommendations if this specific part number becomes obsolete.