KSZ8851-32MQL

Controllers Overview

The KSZ8851-32MQL is a single-port Ethernet MAC controller with a 32-bit non-PCI host interface, manufactured by Microchip Technology. It integrates a Fast Ethernet PHY compliant with IEEE 802.3/802.3u standards and supports 10BASE-T and 100BASE-TX speeds. The device features a 128-pin PQFP package, operates within a commercial temperature range of 0°C to +70°C, and utilizes a single 3.3V power supply with optional 1.8V or 2.5V I/O levels. Internal memory includes 12KB for RX FIFO and 6KB for TX FIFO.

Controllers Feature Summary

• Supports DMA-Slave burst data transfers and IP header checksum generation for IPv4, IPv6, TCP, UDP, and ICMP.
• Includes LinkMD cable diagnostics to determine cable length and detect open or short conditions.
• Provides Wake-on-LAN functionality with Magic Packet, Network Link State, and Wake-Up Frame support.
• Features HP Auto MDI-X crossover capability and programmable LED indicators for link, activity, and speed status.

Controllers Applications

• Video/Audio Distribution Systems
• High-End Cable, Satellite, and IP Set-Top Boxes
• Industrial Control in Latency-Critical Applications

Controllers Procurement Notes

Verify the specific suffix '32MQL' confirms the 32-bit bus width and 128-pin PQFP packaging. Confirm the temperature grade matches the commercial requirement (0°C to +70°C), as industrial variants exist. Ensure the source document aligns with the latest datasheet revision DS00002425B for accurate pinout and electrical specifications.

Controllers Selection Notes

Select this component when a high-throughput single-port Ethernet solution with a generic 32-bit processor interface is required. It is suitable for embedded systems needing integrated MAC/PHY functionality without PCI constraints. Consider the industrial grade variant if operation below 0°C or above 70°C is necessary.

Controllers Part Context

The KSZ8851-32MQL belongs to the KSZ8851M series of single-port Ethernet controllers. It is designed to offer cost-effective high-performance connectivity for traditional embedded systems. The device simplifies design by integrating analog circuitry for efficient signal transmission and reception while maintaining low-power consumption through CMOS technology.

Controllers Replacement Considerations

The KSZ8851-16MQL is a pin-compatible alternative offering an 8/16-bit interface instead of 32-bit. For industrial temperature ranges (-40°C to +85°C), the KSZ8851MQLI variant is available. Existing designs using KSZ8841-16/32MQL or KSZ8842-16/32MQL may utilize this part due to pin compatibility.