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LAN7850

Status: In Production

Features:

  • Single-chip, High-Speed USB 2.0 or HSIC to 10/100/1000 Ethernet controller
  • Integrated HSIC device interface
  • Fully supports IEEE 802.3/802.3u/802.3ab standards
  • Fully supports transformerless board level links
  • 9K jumbo frames are supported
  • IEEE 802.3az-2010 - Energy Efficient Ethernet (EEE)
  • Implements NetDetach™ technology for reduced system power consumption
  • Provides dedicated PME wake-up signal
  • Always On Always Connected (AOAC)
  • Internal OTP memory to remove the need for external EEPROM
  • Integrated core voltage regulator
  • Requires only a single 25MHz crystal
  • Easy upgrade for USB-based 10/100 Ethernet (LAN9500/9500A) to 10/100/1000 Gigabit Ethernet
  • Easy upgrade for HSIC-based 10/100 Ethernet (LAN9730) to 10/100/1000 Gigabit Ethernet
  • Industrial temperature range option available.   -40°C → +85°C (LAN7850-I)
  • 8x8mm, 56-pin SQFN (0.5mm pitch) , RoHS-compliant package
  • Embedded Systems
  • Consumer Electronics Devices
  • Netbooks/Smartbooks/MIDs
  • Docking Stations
  • Digital TVs (DTVs)
  • Set-Top Boxes
  • Personal Video Recorders (PVRs)
  • Network Printers
  • USB Port Replicators
  • Stand-alone USB to Ethernet Dongles
  • Industrial Designs
  • Cameras
  • Available via the Documentation link on this page.
  • A driver supporting this product is already present in the Linux mainline kernel.  Specific backports, when available, can be found within the drivers listed here.
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

Microchip's LAN7850 is a USB High Speed or HSIC to 10/100/1000 Gigabit Ethernet bridge providing an ultra high-performance and cost-effective USB to Ethernet connectivity solution. The LAN7850 contains an integrated 10/100/1000 Gigabit Ethernet PHY, USB PHY, Hi-Speed USB 2.0 device controller, 10/100/1000 Gigabit Ethernet MAC, Integrated OTP, EEPROM controller. The device supports 10BASE-T, 100BASE-TX and 1000BASE-T Ethernet and implements Control, Interrupt, Bulk-in and Bulk-out USB endpoints. The Ethernet controller supports auto-negotiation, auto-polarity correction, HP Auto-MDIX† support and is compliant with IEEE 802.3/802.3u/802.3ab standards.

USB and HSIC based networking provide flexibility for the routing and placement of network connections anywhere in the system. USB-based solutions leverage the existing USB stack for the Ethernet driver. The LAN7850 is also available with a wide range of drivers including Windows®, Mac® and Linux®.

The LAN7850 also offers Microchip’s NetDetach™ and UniClock™ technologies. NetDetach allows for reduced power by enabling the host CPU to enter a low-power state when Ethernet is inactive. UniClock simplifies the clocking scheme and reduces system BOM cost by using a single 25MHz crystal for both USB and Ethernet connectivity. Multiple power management features are provided, including various low-power modes and Magic Packet™, Wake-on-LAN (WoL) and Link Status Change wake events.  MSFT QOAC (alway On Always Connected) is also supported.  These wake events can be programmed to initiate a USB remote wakeup and if  desired, also generate a hardware PME event. The device is available in commercial (0° to 70°C) and industrial temperature range (-40° to 85°C) options.

Microchip's complimentary and confidential LANCheck® and USBCheck™ online design review services are available for customers who have selected our products for their application design-in*.

†HP Auto-MDIX eliminates the need for special "crossover" cables when connecting LAN devices together.

Looking for a companion processor, the SAMA5D2 ARM(r) Cortex A5 has an on-chip HSIC peripheral.  The SAMA5D2 Xplained Ultra development board features an HSIC connection allowing use with the EVB-LAN7850


*The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Additional Features

    Highlights

    • Single-chip, Super-Speed USB 2.0 or HSIC to 10/100/1000 Ethernet controller
    • Integrated HSIC device interface
    • Fully supports IEEE 802.3/802.3u/802.3ab standards
    • Fully supports transformerless board level links
    • 9K jumbo frames are supported

    • IEEE 802.3az-2010 - Energy Efficient Ethernet (EEE)
    • Implements NetDetach™ technology for reduced system power consumption
    • Provides dedicated PME wake-up signal
    • Always On Always Connected (AOAC)
    • Internal OTP memory to remove the need for external EEPROM
    • Integrated core voltage regulator
    • Requires only a single 25MHz crystal
    • Easy upgrade for USB-based 10/100 Ethernet (LAN9500/9500A) to 10/100/1000 Gigabit Ethernet
    • Easy upgrade for HSIC-based 10/100 Ethernet (LAN9730) to 10/100/1000 Gigabit Ethernet
    • Industrial temperature range option available.   -40°C → +85°C (LAN7850-I)
    • 8x8mm, 56-pin SQFN (0.5mm pitch) , RoHS-compliant package

    Target Applications

    • Embedded Systems
    • Consumer Electronics Devices
    • Netbooks/Smartbooks/MIDs
    • Docking Stations
    • Digital TVs (DTVs)
    • Set-Top Boxes
    • Personal Video Recorders (PVRs)
    • Network Printers
    • USB Port Replicators
    • Stand-alone USB to Ethernet Dongles
    • Industrial Designs
    • Cameras

    Drivers & software tools

    • Available via the Documentation link on this page.
    • A driver supporting this product is already present in the Linux mainline kernel.  Specific backports, when available, can be found within the drivers listed here.
Parametrics
Name
Value
Description
USB 2.0 or HSIC to 10/100/1000 Ethernet Bridge
Ethernet Bandwidth
10/100/1000Mbps
MAC
Yes
PHY
Yes
LEDs
4
Op. Voltage (V)
3.3
# Downstream Ethernet/USB Ports
Ethernet x1
Interface
USB 2.0 or HSIC
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
85
NetDetach
Yes

Documents

Jump to:

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
EVB-LAN7850 Evaluation Board
EVB-LAN7850 Evaluation Board ( EVB-LAN7850 )

The EVB-LAN7850 is full featured Evaluation Board EVB that utilizes the LAN7850 to provide a fully functional, bus-powered USB to Ethernet interface.
Can be used in conjunction with the SAMA5D2 Xlplained Ultra microprocessor development board.

Learn More
Add To Cart
Software Libraries
LAN78xx Linux 3.10.61 driver backport

LAN78xx Linux driver backport to support kernel version 3.10.61 

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LAN78xx Linux 3.14.28 driver backport

LAN78xx Linux driver backport to support kernel version 3.14.28

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LAN78xx Linux 3.16.1 driver backport

LAN78xx Linux driver backport to support kernel version 3.16.1

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LAN78xx Linux 3.18.10 driver backport

LAN78xx Linux driver backport to support kernel version 3.18.10

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LAN78xx Linux 4.1.17 driver backport

LAN78xx Linux driver backport to support kernel version 4.1.17

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LAN78xx Linux 4.4.1 driver backport

LAN78xx Linux driver backport to support kernel version 4.4.1

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LAN78xx MAC OSX Device Driver

LAN78xx MAC OS X Drivers

This driver is for MAC OS.  Microchip does not provide drivers for iOS.

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LAN78xx UEFI PXE Driver

LAN78xx UEFI PXE Driver

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LAN78xx Windows (OneCore) Device Drivers

LAN78xx Windows (OneCore) Device Drivers

Windows Drivers for OneCore based Operating Systems. Use the Automated installer (exe) for installation in traditional Windows Computer...

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LAN78xx Windows Command Line Utilities

LAN78xx Windows Command Line EEPROM Programming Utility

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MPLAB(r) Connect Configurator - Programming and Configuration Utility

Follow this link for the latest revision of the MPLAB(r) Connect Configurator -> Click

...

Learn More

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LAN7850/8JX
0.183200
1.192308
56
VQFN
8x8x0.9mm
Matte Tin
e3
LAN7850-I/8JX
0.183200
1.192308
56
VQFN
8x8x0.9mm
Matte Tin
e3
LAN7850T/8JX
0.183200
0.300000
56
VQFN
8x8x0.9mm
Matte Tin
e3
LAN7850T-I/8JX
0.183200
0.300000
56
VQFN
8x8x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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