RTL8201BL Datasheet



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. The RTL8201BL can be used as a Network Interface Adapter, MAU, CNR, ACR, Ethernet Hub, Ethernet Switch. Additionally, it can be used in any embedded system with an Ethernet MAC that needs a twisted pair physical connection or fiber PECL interface to external 100Base-FX optical transceiver module. RTL8201BL 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 RTL8201BL Applications • Network interface adapters and Ethernet hubs/switches• Ethernet MAC-embedded systems that need twisted-pair physical connection, such as those for ADSL/cable modem routers and IA gateways


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