Catalog
10/100 Base-T/TX Physical Layer Transceiver
Key Features
• **•**Single-Chip Ethernet Physical Layer Transceiver (PHY)
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• **•**ESD Protection levels of ±8kV HBM without external protection devices
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• **•**ESD protection levels of EN/IEC61000-4-2, ±8kV contact mode, and ±15kV for air discharge mode per independent test facility
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• **•**Flexible Power Management Architecture
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• **•**LVCMOS Variable I/O voltage range: +1.6V to +3.6V
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• **•**Regulator can be disabled if 1.8V system supply is available
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• **•**Performs HP Auto-MDIX in accordance with IEEE 802.3ab specification
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• **•**Cable length greater than 150 meters
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• **•**Automatic Polarity Correction
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• **•**Latch-Up Performance Exceeds 150mA per EIA/JESD 78, Class II
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• **•**Energy Detect power-down mode
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• **•**Low Current consumption power-down mode
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• **•**39mA typical in 10BASE-T and
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• **•**79mA typical in 100BASE-TX mode
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• **•**Supports Auto-negotiation and Parallel Detection
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• **•**Supports the Media Independent Interface (MII) and Reduced Media Independent Interface (RMII)
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• **•**MII Pins tolerant to 3.6V
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• **•**IEEE 802.3-2005 compliant register functions
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• **•**Integrated DSP with Adaptive Equalizer
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• **•**Baseline Wander (BLW) Correction
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• **•**Vendor Specific register functions
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• **•**Low profile 36-pin QFN RoHS compliant package (6 x 6 x 0.9mm height)
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• **•**4 LED status indicators
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• **•**Commercial Operating Temperature 0° C to 70° C
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• **•**Industrial Operating Temperature -40° C to 85° C version available (LAN8700i)
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• Applications:
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• **•**Set-Top Boxes
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• **•**Network Printers and Servers
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• **•**LAN on Motherboard
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• **•**10/100 PCMCIA/CardBus Applications
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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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• **•**Personal 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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• **•**POS Terminals
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• **•**Automotive Networking
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• **•**Gaming Consoles
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• **•**Security Systems
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• **•**POE Applications
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• **•**Access Control
Description
AI
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/descrambler, 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.
Microchip's complimentary and confidential [MicroCHECK](https://www.microchip.com/en-us/support/design-help/design-check-services) design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design. MicroCHECK design review service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/en-us/support/design-help/design-check-services/design-check-services-program-terms-and-conditions) and requires a myMicrochip account.
