The Microchip LAN8187/LAN8187i is a low-power industrial temperature (LAN8187i), variable I/O voltage, Ethernet Transceiver (PHY) with HP Auto-MDIX for high-performance embedded Ethernet applications. The LAN8187/LAN8187i 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 LAN8187/LAN8187i 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 LAN8187/LAN8187i can be configured to support either the Media Independent Interface (MII) or the Reduced Media Independent Interface (RMII).
The LAN8187/LAN8187i 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.Please consider this deviceLAN8710A,LAN8720A,LAN8740A,LAN8742A
Feature
- 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
- 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
- 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 64-pin TQFP RoHS compliant package (10 x 10 x 1.4mm)
- 4 LED status indicators
- Commercial Operating Temperature 0° C to 70° C
- Industrial Operating Temperature -40° C to 85° C version available (LAN8187i)
Note: The LAN8187/LAN8187i are not recommended for new designs. The LAN8710A/LAN8720A/LAN8740A/LAN8742A are the suggested replacement devices for these products.
Features
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
- Gaming Consoles
- Security Systems
- Access Control
