Single-Chip/Port 10/100M Ethernet PHYceiver with Auto MDIX

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The RTL8201F-VB-CG, RTL8201FL-VB-CG, and RTL8201FN-VB-CG are single-chip/single-port 10/100Mbps Ethernet PHYceivers that support:

• MII (Media Independent Interface)
• RMII (Reduced Media Independent Interface)

The RTL8201F/FL/FN 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), 10Base-TX Encoder/Decoder, and Twisted-Pair Media Access Unit (TPMAU). The RTL8201F/FL/FN support auto MDIX.

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.


• DTV (Digital TV)
• MAU (Media Access Unit)
• CNR (Communication and Network Riser)
• Game Console
• Printer and Office Machine
• DVD Player and Recorder
• Ethernet Hub
• Ethernet Switch

In addition, the RTL8201F/FL/FN 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.

Symmetry Electronics (and its e-commerce division: is an authorized Realtek distributor.


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Supports IEEE 802.3az-2010 (EEE)
100Base-TX IEEE 802.3u Compliant
10Base-T IEEE 802.3 Compliant
Supports MII mode
Supports RMII mode
Full/half duplex operation
Twisted pair or fiber mode output
Supports Auto-Negotiation
Supports power down mode
Supports Link Down Power Saving
Supports Base Line Wander (BLW) compensation
Supports auto MDIX
Supports Interrupt function
Supports Wake-On-LAN (WOL)
Adaptive Equalization
Automatic Polarity Correction
- RTL8201F and RTL8201FL provide two network status LEDs
- RTL8201FN provides three network status LEDs
- Supports 25MHz external crystal or OSC
Supports 50MHz external OSC Clock input
Provides 50MHz clock source for MAC
Low power supply 1.1V and 3.3V; 1.1V is generated by an internal regulator
0.11m CMOS process
- 32-pin MII/RMII QFN Green package (RTL8201F)
- 48-pin MII/RMII LQFP Green package (RTL8201FL)
- 48-pin MII/RMII QFN Green package (RTL8201FN)

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