KSZ8895MQXCA

Controllers Overview

The KSZ8895MQXCA is a Layer 2 managed, five-port Ethernet switch integrated with five MACs and PHYs compliant with IEEE 802.3u standards. It operates at data rates of 10 Mb/s and 100 Mb/s using 10BASE-T and 100BASE-TX protocols. The device features a non-blocking shared memory switch fabric with 1.4 Gbps bandwidth and 64 Kbyte frame buffering. It supports up to 128 active VLAN groups, RSTP, and IGMP v1/v2 snooping. Power supply requirements include a single 3.3V analog supply (VDDAT) and digital I/O voltages of 3.3V, 2.5V, or 1.8V (VDDIO), alongside an internal 1.2V core voltage (VDDC). The component is housed in a 128-pin PQFP package.

Controllers Feature Summary

• Supports comprehensive Layer 2 management including VLAN tagging, rate limiting, and QoS prioritization via multiple queues.
• Provides flexible CPU interface options through dual MII/RMII ports on Port 5 and serial management interfaces like SPI and I2C.
• Includes advanced monitoring capabilities such as port mirroring, MIB counters, and LinkMD cable diagnostics.

Controllers Applications

• VoIP Phone systems
• Industrial Control networks
• Standalone 10/100 5-Port Switches

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with required temperature ranges and package types. Confirm that the procurement channel provides original components with traceable manufacturing history. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing orders.

Controllers Selection Notes

Select this model when a cost-effective, low-power managed switch solution is required for embedded applications. Ensure the design accommodates the 128-pin PQFP footprint and provides appropriate power rails for the 3.3V analog and variable digital I/O sections. Consider the thermal dissipation requirements given the commercial temperature range limitations if operating in enclosed industrial enclosures.

Controllers Part Context

This component belongs to the KSZ8895 family of integrated Ethernet switches from Microchip Technology. The family includes variants with different interface configurations, such as RMII-only or fiber-optic support, and packages like LQFP for automotive grades. The MQX variant specifically denotes the standard copper transceiver configuration with MII interface support in a commercial-grade PQFP package.

Controllers Replacement Considerations

Consult the official datasheet for cross-reference information. Potential substitutes within the same family include KSZ8895RQXCA for RMII interfaces or KSZ8895MLX for automotive grade applications. Verify pin compatibility and register mapping before substituting.