Microchip Technology, Inc. 10/100 Base-T/TX Physical Layer Transceiver LAN8700

The Microchip LAN8700/LAN8700i is a low-power industrial temperature (LAN8700i), variable I/O voltage, analog interface IC with HP Auto-MDIX support for high-performance embedded Ethernet applications. The LAN8700/LAN8700i 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 LAN8700/LAN8700i consists of an encoder/decoder, scrambler/descramble r, wave-shaping transmitter, output driver, twisted-pair receiver with adaptive equalizer 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 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. *The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account. Additional Features Note: The LAN8700/LAN8700i are not recommended for new designs. The LAN8710/LAN8720 are the suggested replacement devices for these products. Features Single-Chip Ethernet Physical Layer Transceiver (PHY) ESD Protection levels of ±8kV HBM without external protection devices ESD protection levels of EN/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 Integrated 3.3V to 1.8V regulator for optional single supply operation Regulator can be disabled if 1.8V system supply is available Performs HP Auto-MDIX in accordance with IEEE 802.3ab specification Cable length greater than 150 meters 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 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 IEEE 802.3-2005 compliant register functions Integrated DSP with Adaptive Equalizer Baseline Wander (BLW) Correction Vendor Specific register functions Low profile 36-pin QFN RoHS compliant package (6 x 6 x 0.9mm height) 4 LED status indicators Commercial Operating Temperature 0° C to 70° C Industrial Operating Temperature -40° C to 85° C version available (LAN8700i) Applications 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 POE Applications Access Control