Note: The LAN83C185 is not recommended for new designs. The LAN8700 or the LAN8187 is the suggested replacement device for this product.

	LAN83C185 General Description
	Data Sheet, Application Notes, Drivers and Design Tools
	LANCheck® Online Review

Features

	Single Chip Ethernet PHY
	Fully Compliant with IEEE 802.3/802.3u Standards
	10BASE-T and 100BASE-TX Support
	Supports Auto-Negotiation and Parallel Detection
	Automatic Polarity Correction
	Integrated DSP with Adaptive Equalizer
	Baseline Wander (BLW) Correction
	Media Independent Interface (MII)
	802.3u Compliant Register Functions
	Vendor Specific Register Functions
	Comprehensive Power Management Features
	General Power-down Mode
	Energy Detect Power-down Mode
	Low profile 64-pin TQFP package; lead-free RoHS compliant package also available
	Single +3.3V Supply with 5V Tolerant I/O
	0.18 Micron Technology
	Low Power Consumption
	Operating Temperature 0° C to 70° C
	Internal +1.8V Regulator

Applications

	LAN on Motherboard
	10/100 PCMCIA/CardBus Applications
	Embedded Telecom Applications
	Video Record/Playback Systems
	Cable Modems and Set-Top Boxes
	Digital Televisions
	Wireless Access Points

General Description

The SMSC LAN83C185 is a low-power, highly integrated analog interface IC for high-performance embedded Ethernet applications. The LAN83C185 requires only a single +3.3V supply.

The LAN83C185 consists of an encoder/decoer, scrambler/descrambler, transmitter with wave-shaping and output driver, twisted-pair receiver with on-chip adaptive equalizer and baseline wander (BLW) correction, clock and data recovery, and Media Independent Interface (MII).

The LAN83C185 is fully compliant with IEEE 802.3/802.3u standards and supports both 802.3u-compliant and vendor-specific register functions. It contains a full-duplex 10BASE-T/100BASE-TX transceiver and supports 10 Mbps (10BASE-T) operation on Category 3 and Category 5 unshielded twisted-pair cable, and 100 Mbps (100BASE-TX) operation on Category 5 unshielded twisted-pair cable.

LAN83C185 Data Sheet, Application Notes,
Drivers and Design Tools

Description	File Name	File Size	Date
LAN83C185 Data Brief	83c185db.pdf	84K	6/12/08
LAN83C185 Data Sheet	83c185.pdf	784K	6/12/08
Reference Design Files
LAN83C185 Reference Design Schematic	83c185sch.pdf	107K	1/2/07
LAN83C185 Reference Design Bill of Materials	83c185bom.pdf	22K	1/2/07
LANCheck® Online Review*
The LAN83C185 is supported by SMSC's LANCheck Online Review, a personalized, value-added service exclusive to SMSC and available at no charge to customers who have selected our Ethernet offerings for their application design-in. LANCheck will support your design process by providing guidance through the complete design cycle - from initial schematic design to PCB design. The following documents are available to assist you with your design:
LAN83C185 Schematic Checklist
LAN83C185 Component Placement Checklist
LAN83C185 Routing Checklist
*The LANCheck Online Review is subject to SMSC's Program Terms and Conditions and requires an E-services account for access.
Application Notes
Application Note 8-13: Suggested Magnetics	an813.pdf	253K	8/4/08
Application Note 10-13: Migrating from the LAN83C180 10/100 PHY to the LAN83C185 10/100 PHY	an1013.pdf	211K	6/6/08
Application Note 13-9: Migrating from the LAN83C183 10/100 PHY to the LAN83C185 10/100 PHY	an139.pdf	178K	9/27/05
Application Note 13-18: Scalable 10/100 Ethernet Reference Design to Support Migration from the SMSC LAN83C185 Non Auto-MDIX PHY to the SMSC LAN8187 HP Auto-MDIX PHY	an1318.pdf	177K	6/17/08
Other Information
Using the Adobe® Acrobat® Reader	aacrobat.html