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See Technical Specifications

LAN7850/8JX

Ethernet Bridge, USB to Ethernet USB 2.0 USB Interface 56-SQFN (8x8)

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

LAN7850/8JX
Datasheet:

LAN7850/8JX Datasheet (PDF)
Protocol:

Ethernet
Function:

Bridge, USB to Ethernet
Interface:

USB
Standards:

USB 2.0
EDA/CAD Models:

Request Free CAD Models for LAN7850/8JX

Email: [email protected]

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Tel: +852 95804164

LAN7850/8JX General Description

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.

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Key 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.

Specifications

Category	Integrated Circuits (ICs)InterfaceControllers	Series	-
Protocol	Ethernet	Function	Bridge, USB to Ethernet
Interface	USB	Standards	USB 2.0
Voltage - Supply	1.8V, 3.3V	Current - Supply	-
Operating Temperature	0°C ~ 70°C	Base Product Number	LAN7850