KSZ8851-16MLL

Controllers Overview

The KSZ8851-16MLL is a single-port Fast Ethernet MAC controller with an integrated PHY, designed for high-performance embedded systems. It features an 8-bit or 16-bit non-PCI generic host processor interface and supports 10BASE-T/100BASE-TX standards compliant with IEEE 802.3/802.3u. The device includes 18 KB of internal memory (12 KB RX FIFO, 6 KB TX FIFO) and supports DMA-slave burst transfers. It operates on a single 3.3V supply with optional 1.8V, 2.5V, or 3.3V I/O levels. The component is housed in a 48-pin LQFP package and supports commercial temperature ranges.

Controllers Feature Summary

• Integrated MAC and PHY controller supporting 10/100 Mbps speeds with HP Auto-MDIX
• Flexible 8-bit or 16-bit shared data bus interface compatible with common embedded MCUs
• LinkMD cable diagnostics for length measurement and fault detection
• Wake-on-LAN functionality including Magic Packet and Energy Detect support

Controllers Applications

• Video/Audio Distribution Systems
• High-End Cable, Satellite, and IP Set-Top Boxes
• Voice over IP (VoIP) and Analog Telephone Adapters
• Industrial Control Sensor Devices
• Security, Motion Control and Surveillance Cameras

Controllers Procurement Notes

Verify the specific suffix against the datasheet to confirm temperature grade and automotive qualification status. Ensure the host system voltage matches the VDD_IO options. Confirm pin strap configurations for bus width and endianness during power-up. Check for required external components like crystals and EEPROMs as defined in the hardware design guidelines.

Controllers Selection Notes

Select this model for applications requiring a cost-effective single-port solution with a simple parallel interface. Consider the -MLLI variant for industrial temperature ranges (-40°C to +85°C) or the -MLLU variant for AEC-Q100 automotive qualification. Evaluate the 16-bit interface requirement against available MCU pins to optimize board space and performance.

Controllers Part Context

This component belongs to the KSZ8851M series of single-port Ethernet controllers. It serves as a bridge between traditional embedded processors and Ethernet networks without requiring PCI interfaces. The family includes variants with different package sizes and temperature ratings to suit various market segments from consumer electronics to industrial automation.

Controllers Replacement Considerations

Public confirmed substitute part numbers include KSZ8851-16MLLI and KSZ8851-16MLLU. These variants share identical functional specifications but differ in operating temperature range and automotive qualification status respectively.