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LAN8700 Ethernet PHY

A3988 quad full-bridge motor driver
LAN8700

     
Industry’s Smallest, Full-Featured 10/100 Ethernet Transceivers
     

SMSC’s LAN8700 and industrial temperature-rated LAN8700i transceivers with HP Auto-MDIX* support are designed for high-performance Ethernet applications. Both devices leverage flexPWR™ technology, which provides a flexible power management architecture that can be configured to optimize total system power for customers who require a smaller footprint and lower power solution without compromising on features. An integrated 3.3V to 1.8V regulator can be enabled for single supply operation, or disabled to save power if an external 1.8V supply is available. Additional system power can be saved by scaling the I/O voltage to the lowest voltage possible within the configurable 1.6V to 3.6V range. Many of today’s higher performance ASICs, SoCs and FPGAs have migrated to aggressive process geometries which require lower I/O voltages. The LAN8700 and LAN8700i also feature the industry’s best ESD performance (± 8kV HBM, ± 8kV contact and ± 15kV air discharge IEC), based on independent lab test results.**

     
* HP Auto-MDIX eliminates the need for special “crossover” cables when connecting LAN devices together
     
** Results are based on actual measurements on evaluation platforms developed by SMSC, and are meant only as a general guideline, not as a guarantee. Actual customer results may vary based on a number of factors, including board layout and measurement technique.
     
SMSC flexPWR provides:
  • Flexible technology to optimize power consumption
  • Integrated 1.8V regulator with disable feature
  • Ability to utilize on-board, high-efficiency 1.8V switcher
  • Variable I/O voltage to support a wide variety of processor choices
  • Energy Detect Power-down capability
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
LVCMOS-variable I/O voltage range: +1.6V to +3.6V
Automatic Polarity Correction
Low current consumption power-down mode
Low operating current consumption
Industrial operating temperature (-40°C to 85°C) version available (LAN8700i only)
 
Features Benefits
±8kV HBM ESD protection Allows for reduced BOM parts count and cost
±8kV contact and ±15kV air discharge IEC61000-4-2 ESD protection without external protection devices Reference PCB design with proven ESD performance
Variable I/O voltage range from +1.6V to +3.6V Supports low voltage ASIC, SoC and FPGA system roadmaps
Energy detect power-down mode Conserves system power by shutting down inactive circuit blocks
Integrated 3.3V to 1.8V regulator Only a single 3.3V supply is required
Internal regulator disable mode Reduces power consumption if a 1.8V system supply is available
HP Auto-MDIX support Performs automatic crossover cable detection and correction
Drives cable length greater than 170 meters Exceeds IEEE standard 100 meter requirements
Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) Covers the industry's two most popular interfaces
Industrial temperature-rated -40°C to 85°C (LAN8700i only) Designed to perform in rugged industrial environments
36 QFN lead-free, RoHS-compliant package (6 x 6 x 0.9mm) Low profile, small footprint package for compact designs
     
Target Applications
Set-top Boxes
Network Printers
Network Servers
LAN on Motherboard
10/100 PCMCIA/CardBus
Embedded Telecommunications
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
Power Over Ethernet (POE)
Access Control
     
     
     
     
     
     
 

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