LAN8187中文资料10/100 Base-T/TX Ethernet Transceiver数据手册Microchip规格书

描述 Description

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.



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特性 Features

• 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
• Flexible Power Management Architecture
• LVCMOS Variable I/O voltage range: +1.6V to +3.6V
• 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
• 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)
• 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)
• 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

简介

LAN8187属于集成电路（IC）的驱动器接收器收发器。由制造生产的LAN8187驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。