General Description

The RTL8201N (64-Pin QFN) is a single-chip/single-port PHYceiver that supports:

• MII (Media Independent Interface)

• RMII (Reduced Media Independent Interface)

• SNI (Serial Network Interface)

   The RTL8201R (32-Pin QFN) is a single-chip/single-port PHYceiver that supports RMII mode only.

   The chips implement 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 MDIX 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.