RTL8201BL Datasheet PDF - Realtek

●General Description

●The RTL8201BL is a single-port Phyceiver with an MII (Media Independent Interface)/SNI(Serial Network  Interface). It implements all 10/100M Ethernet Physical-layer functions including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), Twisted Pair Physical Medium Dependent Sublayer (TP-PMD), 10Base-Tx Encoder/Decoder and Twisted Pair Media Access Unit (TPMAU). A PECL interface is supported to connect with an external 100Base-FX fiber optical transceiver. The chip is fabricated with an advanced CMOS process to meet low voltage and low power requirements.

● Features

●The Realtek RTL8201BL is a Fast Ethernet Phyceiver with selectable MII or SNI interface to the MAC chip. It provides the following features:

●Supports MII/7-wire  SNI (Serial Network Interface) interface

●Supports 10/100Mbps operation 

●Supports half/full duplex operation

●Support of twisted pair or Fiber mode output

●IEEE 802.3/802.3u compliant

●Supports IEEE 802.3u clause 28 auto negotiation 

●Supports power down mode

●Supports operation under Link Down Power Saving mode

●Supports Base Line Winder (BLW) compensation

●Supports repeater mode

●Speed/duplex/auto negotiation adjustable

●3.3V operation with 5V IO signal tolerance

●Low operation power consumption and only need single supply 3.3V 

●Adaptive Equalization

●25MHz crystal/oscillator as clock source

●Multiple network status LED support

●Flow control ability support to co-work with MAC (by MDC/MDIO)

●48 pin LQFP package