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RTL8201CP Single-Port 10/100M Fast Ethernet PHYceiver General Description The RTL8201CP 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), with an auto crossover detection function, 10Base-Tx Encoder/Decoder, and Twisted Pair Media Access Unit (TPMAU). A PECL (Pseudo Emitter Coupled Logic) interface is supported to connect with an external 100Base-FX fiber optical transceiver. The chip utilizes an advanced CMOS process to meet low voltage and low power requirements. With on-chip DSP (Digital Signal Processing) technology, the chip provides excellent performance under all operating conditions. The RTL8201CP can be used for applications such as those for a Network Interface Adapter, MAU (Media Access Unit), CNR (Communication and Network Riser), ACR (Advanced Communications Riser), an Ethernet hub, and an Ethernet switch. In addition, it can be used in any embedded system with an Ethernet MAC that needs a UTP physical connection or Fiber PECL interface to an external 100Base-FX optical transceiver module. Features Pin-to-pin compatible with RTL8201BL Supports MII and 7-wire SNI (Serial Network Interface) 10/100Mbps operation Full/half duplex operation Twisted pair or fiber mode output Supports power down mode Supports operation under Link Down Power Saving mode Supports Base Line Wander (BLW) compensation Supports auto crossover detection (new RTL8201CP function) Supports repeater mode Adaptive Equalization Network status LEDs Flow control support 25MHz crystal/oscillator as clock source IEEE 802.3/802.3u compliant, including Auto-Negotiation 1.8V/3.3V operation with 3.3V IO signal tolerance Low dual-power supply, 1.8V and 3.3V; 1.8V is generated by an internal regulator 0.18µm CMOS process 48-pin LQFP package Applications Network interface adapters and Ethernet hubs/switches Ethernet MAC-embedded systems that need twisted-pair physical connections, such as those for ADSL/cable modem routers and IA gateways Download Page Links Datasheets Reference Designs
