LAN83C185

Please consider this device

The Microchip 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/decoder, 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.

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 RoHS compliant package
  • 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
  • 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
Parameter
Parameter Name Value Value
Description High Performance Single Chip Low Power 10/100 Mbps Ethernet Physical Layer Transceiver High Performance Single Chip Low Power 10/100 Mbps Ethernet Physical Layer Transceiver
Ethernet Bandwidth 10Base-T/ 100Base-TX 10Base-T/ 100Base-TX
Op. Voltage (V) 3.3 3.3
LEDs 4 4
# of Ethernet Ports 1 1
Interface MII MII
Temp. Range Max. (°C) 70 70
Interface1 MII MII
Supply Voltage (V) 3.3 3.3
Vdd I/O (V) 3.3 3.3
Documents
LAN83C185 High Performance Single Chip Low Power 10/100 Physical Layer TransceiData Sheets06/12/2008788KB
AN10.13 - Migrating from the LAN83C180 10/100 PHY to the LAN83C185 10/100 PHYAppNote06/07/2008210KB
AN13.18 - Scalable 10/100 Ethernet Reference Design to Support Migration from LAN83C185 Non Auto-MDIX PHY to LAN8187 HP Auto-MDIX PHYAppNote06/18/2008176KB
AN13.9 - Migrating from the LAN83C183 10/100 PHY to the LAN83C185 10/100 PHYAppNote09/28/2005177KB
AN17.18 - SMSC Design Guide for Power over Ethernet ApplicationsAppNote09/20/2009445KB
AN2157 - Transient Protection in Power Over Ethernet ApplicationsAppNote05/24/2016229KB
AN8.13 - Suggested MagneticsAppNote06/28/2011240KB
LAN83C185 IBIS ModelIBIS11/29/2007184KB
LAN83C185 64-pin TQFP Package Component Placement ChecklistDesign Checklist08/08/200750KB
LAN83C185 64-pin TQFP Package Routing ChecklistDesign Checklist08/08/200751KB
LAN83C185 Component Placement ChecklistDesign Checklist08/24/20131KB
LAN83C185 Routing ChecklistDesign Checklist08/24/20131KB
LAN83C185 Schematic ChecklistDesign Checklist08/24/20131KB
LAN83C185 TQFP Rev B Schematic ChecklistDesign Checklist09/07/200784KB
LAN83C185 High Performance Single Chip Low Power 10/100 Physical Layer TransceiProduct Briefs06/12/200883KB
LAN83C185 Reference Design Bill of MaterialsSchematics01/02/200721KB
LAN83C185 Reference Design SchematicSchematics01/02/2007106KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
LAN83C185-JT64LQFP0C to +70CTRAY3.342.782.532.442.42
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
LAN83C185-JT0.1667001.08750064LQFP10x10x1.4mmMatte Tine3
LAN83C185 High Performance Single Chip Low Power 10/100 Physical Layer Transcei LAN83C185
AN10.13 LAN83C185
AN13.18 LAN83C185
AN13.9 LAN83C185
AN17.18 LAN9313
AN2157 LAN9355
AN8.13 LAN9354
LAN83C185 64-pin TQFP Package Component Placement Checklist LAN83C185
LAN83C185 64-pin TQFP Package Routing Checklist LAN83C185
LAN83C185 TQFP Rev B Schematic Checklist LAN83C185
LAN83C185 High Performance Single Chip Low Power 10/100 Physical Layer Transcei LAN83C185
LAN83C185 Reference Design Bill of Materials LAN83C185
LAN83C185 Reference Design Schematic LAN83C185