LAN7850-I/8JX Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The LAN7850-I/8JX is a USB-to-Ethernet interface bridge IC supporting USB 3.1 Gen 1 SuperSpeed and Gigabit Ethernet per IEEE 802.3/802.3u, with a maximum data transfer rate of 125 MBps. It integrates an Ethernet MAC/PHY with boundary scan support and a 56-pin VQFN package for compact embedded system designs. Available from Microchip with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- LAN7850-I/8JX Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.3800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LAN7850-I/8JX?
- USB 3.1 Gen 1 SuperSpeed to Gigabit Ethernet bridging at up to 125 MBps data transfer rate
- Integrated Ethernet MAC and PHY supporting IEEE 802.3 and IEEE 802.3u (100BASE-TX/10BASE-T) standards
- Boundary scan (JTAG) support for manufacturing test and in-system debugging
- 25 MHz clock interface with asynchronous and synchronous communication protocol support
- Compact 56-pin VQFN package (SQFN) minimizes PCB footprint for space-constrained embedded designs
What is LAN7850-I/8JX used for?
The LAN7850-I/8JX is ideal for embedded single-board computers, industrial gateways, and network-attached storage (NAS) devices that require a USB to Gigabit Ethernet bridge for high-speed wired connectivity. It is widely used in Raspberry Pi-compatible systems and ARM-based SBCs to add a true Gigabit Ethernet port via USB 3.x host controllers at 125 MBps throughput. Medical instruments and test equipment also leverage this device where USB-only platforms need IEEE 802.3 LAN access for remote monitoring and data upload.
What are the specifications of LAN7850-I/8JX?
| Manufacturer Package Code | VQFN-56 |
| Factory Lead Time | 15Weeks |
| Date Of Intro | 2016-10-20 |
| YTEOL | 19 |
| Boundary Scan | YES |
| Bus Compatibility | USB |
| Clock Frequency-Max | 25MHz |
| Communication Protocol | ASYNC, BIT; SYNC, BYTE; ETHERNET |
| Data Transfer Rate-Max | 125MBps |
| Drive Interface Standard | IEEE 802.3; IEEE 802.3U |
| JESD-30 Code | S-PQCC-N56 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of I/O Lines | 12 |
| Number of Serial I/Os | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC56,.31SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Screening Level | TS 16949 |
| Supply Current-Max | 183mA |
| Supply Voltage-Max | 1.26V |
| Supply Voltage-Min | 1.1V |
| Supply Voltage-Nom | 1.2V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, LAN |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan |
Where can I find the LAN7850-I/8JX datasheet?
LAN7850-I/8JX Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for LAN7850-I/8JX?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum data transfer rate of the LAN7850-I/8JX USB-to-Ethernet bridge?
The LAN7850-I/8JX supports USB 3.1 Gen 1 SuperSpeed and achieves a maximum data transfer rate of 125 MBps, enabling full Gigabit Ethernet throughput over a USB 3.x host connection. This bandwidth is sufficient for demanding applications such as NAS file transfers and industrial data acquisition at 1000 Mbps line rates.
Which Ethernet standards does the LAN7850-I/8JX comply with, and does it support auto-negotiation?
The LAN7850-I/8JX complies with IEEE 802.3 (10BASE-T) and IEEE 802.3u (100BASE-TX/1000BASE-T), supporting auto-negotiation across 10, 100, and 1000 Mbps link speeds. Its integrated MAC/PHY handles link detection automatically, simplifying host software and reducing integration effort in embedded Linux or Windows systems with 8 or more concurrent network streams.
How does the boundary scan feature of the LAN7850-I/8JX help during PCB production testing?
The LAN7850-I/8JX includes IEEE 1149.1 JTAG boundary scan, enabling automated in-circuit testing of all 56 I/O pins without physical probe access. Manufacturing engineers can verify solder joint integrity and detect open or shorted connections on the VQFN-56 package during production, reducing test fixture complexity and improving first-pass yield on high-volume boards.
In which embedded computing platforms is the LAN7850-I/8JX commonly deployed as a Gigabit Ethernet solution?
The LAN7850-I/8JX is the Gigabit Ethernet controller used in the Raspberry Pi 3B+ and Raspberry Pi 4, providing a 125 MBps USB 3.0-attached 1000BASE-T interface to the Broadcom SoC. It is equally adopted in other ARM-based SBCs, industrial fanless computers, and network appliances where a PCIe lane is unavailable and USB 3.x is the highest-speed host interface.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.6300 | $9.63 |
| 25+ | $8.7500 | $218.75 |
| 50+ | $8.6200 | $431.00 |
| 100+ | $7.2900 | $729.00 |
| 1000+ | $6.7300 | $6730.00 |
| 5000+ | $6.3800 | $31900.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit