LAN8187

Please consider this device

The Microchip LAN8187/LAN8187i is a low-power industrial temperature (LAN8187i), variable I/O voltage, analog interface IC with HP Auto-MDIX for high-performance embedded Ethernet applications. The LAN8187/LAN8187i can be configured to operate on a single 3.3V supply utilizing an integrated 3.3V to 1.8V linear regulator. An option is available to disable the linear regulator to optimize system designs that have a 1.8V power plane available.

The LAN8187/LAN8187i consists of an encoder/decoder, scrambler/descrambler, wave-shaping transmitter, output driver, twisted-pair receiver with adaptive equalizer and baseline wander (BLW) correction, and clock and data recovery functions. The LAN8187/LAN8187i can be configured to support either the Media Independent Interface (MII) or the Reduced Media Independent Interface (RMII).

The LAN8187/LAN8187i is compliant with IEEE 802.3-2005 standards (MII Pins tolerant to 3.6V) and supports both IEEE 802.3-2005 compliant and vendor-specific register functions. It contains a full-duplex 10-BASE-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 Physical Layer Transceiver (PHY)
  • ESD Protection levels of ±8kV HBM without external protection devices
  • ESD protection levels of IEC61000-4-2, ±8kV contact mode, and ±15kV for air discharge mode per independent test facility
  • Comprehensive flexPWR® Technology Flexible Power Management Architecture
  • Flexible Power Management Architecture
  • LVCMOS Variable I/O voltage range: +1.6V to +3.6V
  • Integrated 3.3V to 1.8V regulator for optional single supply operation Regulator can be disabled if 1.8V system supply is available
  • Regulator can be disabled if 1.8V system supply is available
  • Performs HP Auto-MDIX in accordance with IEEE 802.3ab specification
  • Automatic Polarity Correction
  • Latch-Up Performance Exceeds 150mA per EIA/JESD 78, Class II
  • Energy Detect power-down mode
  • Low Current consumption power-down mode
  • Low operating current consumption: 39mA typical in 10BASE-T and 79mA typical in 100BASE-TX mode
  • 39mA typical in 10BASE-T and
  • 79mA typical in 100BASE-TX mode
  • Supports Auto-negotiation and Parallel Detection
  • Supports the Media Independent Interface (MII) and Reduced Media Independent Interface (RMII)
  • Compliant with IEEE 802.3-2005 standards MII Pins tolerant to 3.6V
  • MII Pins tolerant to 3.6V
  • IEEE 802.3-2005 compliant register functions
  • Integrated DSP with Adaptive Equalizer
  • Baseline Wander (BLW) Correction
  • Vendor Specific register functions
  • Low profile 64-pin TQFP RoHS compliant package (10 x 10 x 1.4mm)
  • 4 LED status indicators
  • Commercial Operating Temperature 0° C to 70° C
  • Industrial Operating Temperature -40° C to 85° C version available (LAN8187i)
  • Set-Top Boxes
  • Network Printers and Servers
  • LAN on Motherboard
  • 10/100 PCMCIA/CardBus Applications
  • Embedded Telecom Applications
  • Video Record/Playback Systems
  • Cable Modems/Routers
  • DSL Modems/Routers
  • Digital Video Recorders
  • Personal Video Recorders
  • IP and Video Phones
  • Wireless Access Points
  • Digital Televisions
  • Digital Media Adaptors/Servers
  • POS Terminals
  • Automotive Networking
  • Gaming Consoles
  • Security Systems
  • Access Control
Parameter
Parameter Name Value Value
Description MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR® Technology MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR® Technology
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/RMII MII/RMII
Temp. Range Min. (°C) -40 -40
Temp. Range Max. (°C) 85 85
HP-Auto MDIX Yes Yes
Interface1 MII/RMII MII/RMII
Supply Voltage (V) 3.3 3.3
Vdd I/O (V) 3.3 3.3
Documents
LAN8187/LAN8187i +/-15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver witData Sheets03/04/2011941KB
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
AN17.18 - SMSC Design Guide for Power over Ethernet ApplicationsAppNote09/20/2009445KB
AN18.6 - SMSC Ethernet Physical Layer Layout GuidelinesAppNote10/28/2008578KB
AN2157 - Transient Protection in Power Over Ethernet ApplicationsAppNote05/24/2016229KB
AN8.13 - Suggested MagneticsAppNote06/28/2011240KB
LAN8187(i) IBIS ModelIBIS12/07/2006494KB
LAN8187 Schematic ChecklistDesign Checklist08/24/20131KB
LAN8187 TQFP Rev E Schematic ChecklistDesign Checklist02/16/201278KB
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
LAN8187I-JT0.1667001.08750064LQFP10x10x1.4mmMatte Tine3
LAN8187-JT0.1667001.08750064LQFP10x10x1.4mmMatte Tine3
LAN8187/LAN8187i +/-15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver wit LAN8187
AN13.18 LAN83C185
AN17.18 LAN9313
AN18.6 LAN8720A
AN2157 LAN9353
AN8.13 LAN9355
LAN8187 TQFP Rev E Schematic Checklist LAN8187