KSZ8851-16MLL-TR

Controllers Overview

The KSZ8851-16MLL-TR is a single-port Ethernet MAC controller with an integrated 10/100 Base-T/TX PHY, manufactured by Microchip Technology. It features a non-PCI CPU interface supporting 8-bit or 16-bit generic host processor connections via a shared data bus. The device operates on a single 3.3V power supply with options for 1.8V, 2.5V, or 3.3V VDD I/O. It includes 12 KB of RX FIFO and 6 KB of TX FIFO memory. The component is housed in a 48-pin LQFP package and supports commercial temperature ranges from 0°C to +70°C.

Controllers Feature Summary

• Integrated MAC and PHY controller compliant with IEEE 802.3/802.3u standards
• Supports DMA-Slave burst data transfers and IP header checksum generation/checking
• Includes LinkMD cable diagnostics and Wake-on-LAN functionality
• Features HP Auto-MDIX support and programmable LED indicators

Controllers Applications

• Video/Audio Distribution Systems
• High-End Cable, Satellite, and IP Set-Top Boxes
• Industrial Control Sensor Devices
• Security, Motion Control and Surveillance Cameras

Controllers Procurement Notes

Verify the specific suffix -TR indicates tape and reel packaging when sourcing. Confirm the voltage grade matches application requirements, as industrial (-I) and automotive (-U) variants exist alongside the commercial version. Ensure the host system supports the required 8-bit or 16-bit parallel interface timing specifications defined in the datasheet.

Controllers Selection Notes

Select this component for embedded systems requiring high-throughput Fast Ethernet connectivity without PCI interfaces. Consider the -I variant for industrial environments requiring extended temperature ranges. Verify that the host microcontroller can accommodate the shared data bus architecture and interrupt schemes to minimize CPU overhead during data transmission.

Controllers Part Context

This part belongs to the KSZ8851M-series of single-port Ethernet controllers designed for cost-effective integration into traditional embedded systems. It serves as a mixed analog/digital solution for Fast Ethernet applications, offering a compact alternative to separate MAC and PHY components while maintaining full protocol compliance.

Controllers Replacement Considerations

Public confirmed substitute: KSZ8851-16MLLI-TR (Industrial Temperature Grade). Verify pin compatibility and thermal specifications before substitution.