SMSC flexpwr lan8720i Manual De Usuario

SMSC LAN8720/LAN8720i

Revision 1.0 (05-28-09)

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Single-Chip Ethernet Physical Layer Transceiver 

(PHY)

„

Comprehensive flexPWR

®

 Technology 

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Flexible Power Management Architecture

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Power savings of up to 40% compared to competition

—

LVCMOS Variable I/O voltage range: +1.6V to +3.6V

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Integrated 1.2V regulator

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HP Auto-MDIX support

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Miniature 24 pin QFN lead-free RoHS compliant 

package (4 x 4 x 0.85mm height).

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Set-Top Boxes

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Networked Printers and Servers

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Test Instrumentation

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LAN on Motherboard

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Embedded Telecom Applications

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Video Record/Playback Systems

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Cable Modems/Routers

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DSL Modems/Routers

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Digital Video Recorders

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IP and Video Phones

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Wireless Access Points

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Digital Televisions

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Digital Media Adaptors/Servers

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Gaming Consoles

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POE Applications

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High-Performance 10/100 Ethernet Transceiver

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Compliant with IEEE802.3/802.3u (Fast Ethernet)

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Compliant with ISO 802-3/IEEE 802.3 (10BASE-T)

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Loop-back modes

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Auto-negotiation

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Automatic polarity detection and correction

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Link status change wake-up detection

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Vendor specific register functions

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Power and I/Os

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Various low power modes

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Integrated power-on reset circuit

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Two status LED outputs

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Latch-Up Performance Exceeds 150mA per EIA/JESD 
78, Class II

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May be used with a single 3.3V supply

„

Advanced Features

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Able to use a low cost 25Mhz crystal for the lowest 
eBOM

„

Packaging

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24-pin QFN (4x4 mm) Lead-Free RoHS Compliant 
package with RMII

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Environmental

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Extended Commercial Temperature Range (0°C to 
+85°C)

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Industrial Temperature Range (-40°C to +85°C) version 
available (LAN8720i)