KSZ8851-16MQL

Controllers Overview

The KSZ8851-16MQL is a single-port Ethernet MAC controller with an integrated PHY, compliant with IEEE 802.3/802.3u standards. It features an 8/16-bit non-PCI generic host processor interface and supports 10BASE-T/100BASE-TX speeds. The device includes 12KB RX FIFO and 6KB TX FIFO buffers, DMA-Slave burst transfers, and IP header checksum generation for IPv4/IPv6. It operates on a single 3.3V supply with optional 1.8V or 2.5V I/O, uses a 128-pin PQFP package, and functions within commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature ranges.

Controllers Feature Summary

• Integrated MAC and PHY supporting 10/100 Mbps full/half-duplex communication
• Flexible 8/16/32-bit generic host processor interface with DMA support
• Hardware checksum offloading for IPv4, IPv6, TCP, UDP, and ICMP
• LinkMD cable diagnostics and Wake-on-LAN functionality

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 'MQL' corresponds to the 128-pin PQFP package and 16-bit bus width configuration. Confirm that the required operating temperature range matches the commercial or industrial grade specifications defined in the datasheet. Ensure the host system provides the necessary 25 MHz reference clock and appropriate power supply decoupling for the 3.3V and core voltage domains.

Controllers Selection Notes

Select this component when a high-throughput embedded solution requires a non-PCI interface with simple SRAM-like timing. It is suitable for applications needing hardware-based frame filtering, large internal FIFOs to reduce CPU overhead, and integrated analog circuitry for efficient signal transmission. Consider the 32-bit variant if wider data buses are required by the host architecture.

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 Layer 2 controller offering comprehensive management information base counters and flexible address filtering schemes for network traffic management.

Controllers Replacement Considerations

The KSZ8851-32MQL is a pin-compatible alternative offering a 32-bit host interface instead of 16-bit. For industrial temperature grades, the KSZ8851MQLI variant is available.