Product category:
Communications ICs (Wired)
News Release from: Nu Horizons Electronics Corp | Subject: SMSC LAN8700/LAN8700I
Edited by the Electronicstalk Editorial
Team on 28 April 2006
Interface IC embeds Ethernet
connectivity
The SMSC LAN8700/LAN8700I is a low-power variable-I/O-voltage analogue interface IC with HP Auto-MDIX for high-performance embedded Ethernet applications.
The SMSC LAN8700/LAN8700I is a low-power, industrial temperature (LAN8700I), variable I/O voltage, analogue interface IC with HP Auto-MDIX for high-performance embedded Ethernet applications The LAN8700/LAN8700I can be configured to operate on a single 3.3V supply using an integrated 3.3 to 1.8V linear regulator
This article was originally published on Electronicstalk on 25 Mar 2004 at 8.00am (UK)
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An option is available to disable the linear regulator to optimise system designs that have a 1.8V system supply available.
The LAN8700/LAN8700I consists of an encoder/decoder, scrambler/descrambler, wave-shaping transmitter, output driver, twisted-pair receiver with adaptive equaliser and baseline wander (BLW) correction, and clock and data recovery functions.
The LAN8700/LAN8700I can be configured to support either the Media Independent Interface (MII) or the Reduced Media Independent Interface (RMII).
The LAN8700/LAN8700I is compliant with IEEE802.3-2005 standards (MII pins tolerant to 3.6V) and supports both IEEE802.3-2005 compliant and vendor-specific register functions.
It contains a full-duplex 10Base-T/100Base-TX transceiver and supports 10Mbit/s operation on Category 3 and Category 5 unshielded twisted-pair cable, and 100Mbit/s operation on Category 5 unshielded twisted-pair cable.
The part is packaged in a small footprint, low profile, 36-pin QFN package (6 x 6 x 0.9mm) that is fully RoHS compliant.
An evaluation board is available that interfaces a MAC controller to the SMSC LAN8700 Ethernet PHY through an MII connector, and out to an RJ45 Ethernet jack through industrial temperature rated magnetics for 10/100 connectivity.
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