The RTL8201CL 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 (Positive 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 вимога. With on-chip DSP (Digital Signal Processing) technology, the chip provides excellent performance under all operating conditions.

The RTL8201CL 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

Supports MII and 7-wire SNI (Serial Network Interface)
10/100Mbps operation
Full/half duplex operation
Twisted pair or mode fiber output
Supports power down mode
Supports operation under Link Down Power Saving mode
Supports Base Line Wander (BLW) compensation
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