LAN7850-I/8JX

Controllers Overview

The LAN7850-I/8JX is a single-chip Hi-Speed USB 2.0 to 10/100/1000 Ethernet controller manufactured by Microchip Technology. It integrates a Gigabit PHY with HP Auto-MDIX, an Ethernet MAC supporting full-duplex operation, and a USB 2.0 device controller. The component operates within a voltage range of 2.97 V to 3.63 V and supports data rates of 12 Mb/s and 480 Mb/s. It functions in an industrial temperature range from 0°C to +70°C and consumes up to 60 mA of operating power. The device is housed in a 56-pin SQFN package.

Controllers Feature Summary

• Integrates a Gigabit Ethernet PHY with HP Auto-MDIX and a 10/100/1000 Ethernet MAC.
• Supports Energy Efficient Ethernet (IEEE 802.3az) and Wake on LAN functionality.
• Includes One Time Programmable memory for configuration without external EEPROM.
• Features NetDetach capability for automatic USB attachment upon cable connection.

Controllers Applications

• Automotive Infotainment Systems
• Notebook and Tablet Docking Stations
• USB Port Replicators
• Standalone USB to Ethernet Dongles

Controllers Procurement Notes

Verify the specific suffix 'I/8JX' against official Microchip documentation to confirm industrial temperature rating and SQFN-56 packaging. Ensure compatibility with required operating voltages and interface standards before procurement. Confirm current availability status as distribution channels may vary.

Controllers Selection Notes

Select this model when an integrated solution for USB 2.0 High-Speed connectivity to Gigabit Ethernet is required. Consider the industrial temperature range suitability for the target environment. Verify software driver support for the intended operating system, including Windows, Linux, or macOS.

Controllers Part Context

This component belongs to the LAN7850 series of USB to Ethernet controllers. It serves as a bridge between USB host systems and Ethernet networks, consolidating PHY, MAC, and USB controller functions into a single chip to reduce board space and component count.

Controllers Replacement Considerations

Consult official Microchip documentation for confirmed substitute part numbers. Do not assume functional equivalence with other models based solely on family naming conventions.