KSZ8851SNLI-TR

Controllers Overview

The KSZ8851SNLI-TR is a single-chip Fast Ethernet controller integrating a 10/100 Base-T/TX PHY, MAC, and SPI interface. It supports data rates of 10 Mb/s and 100 Mb/s with full or half-duplex operation. The device features an SPI clock speed up to 40 MHz, 12 KB RX FIFO, and 6 KB TX FIFO. Supply voltage options include 3.3V, 2.5V, and 1.8V for VDD_IO. It operates within a commercial temperature range of 0°C to +70°C and is housed in a 32-pin QFN (5 mm x 5 mm) package.

Controllers Feature Summary

• Integrated MAC and PHY compliant with IEEE 802.3/802.3u standards
• SPI interface supporting high throughput applications up to 40 MHz
• Wake-on-LAN functionality including Magic Packet and Energy Detect
• LinkMD cable diagnostic capabilities for length and fault detection

Controllers Applications

• Video/Audio Distribution Systems
• Voice over IP (VoIP) and Analog Telephone Adapters
• Industrial Control Sensor Devices
• Security, Motion Control, and Surveillance Cameras

Controllers Procurement Notes

Verify the industrial temperature grade suffix 'I' corresponds to the -40°C to +85°C range if required, as datasheet sections describe both commercial and industrial variants. Confirm the '-TR' suffix indicates tape and reel packaging. Cross-reference the specific revision letter in the part number against the manufacturer's current documentation to ensure compatibility with latest errata sheets.

Controllers Selection Notes

Select this component for embedded systems requiring a cost-effective Ethernet solution with an SPI host interface. Ensure the host microcontroller supports SPI clock speeds up to 40 MHz. Verify power supply requirements match the available 1.8V, 2.5V, or 3.3V options. Consider the industrial temperature rating if the application environment exceeds standard commercial limits.

Controllers Part Context

The KSZ8851SNLI-TR belongs to the KSZ8851 family of single-port Ethernet controllers. It shares core architecture with the commercial grade KSZ8851SNL but is rated for extended industrial temperatures. The device serves as a bridge between SPI-based hosts and Ethernet networks, eliminating the need for separate MAC and PHY components.

Controllers Replacement Considerations

Public confirmed substitute: ENC28J60T-I/ML.