Product Summary

The RTL8305SC is a 5-port Fast Ethernet switch controller that integrates memory, five MACs, and five physical layer transceivers for 10Base-T and 100Base-TX operation into a single chip. All ports support 100Base-FX, which shares pins (TX+-/RX+-) with UTP ports and needs no SD+/- pins, a development using Realtek proprietary technology. To compensate for the lack of auto-negotiation in 100Base-FX applications, the RTL8305SC can be forced into 100Base-FX half or full duplex mode, and can enable or disable flow control in fiber mode.

Parametrics

RTL8305SC absolute maximum ratings: (1)Vcc Supply Referenced to GND -0.5 +4.0 V; (2)Digital Input Voltage -0.5 VDD V; (3)DC Output Voltage -0.5 VDD V.

Features

RTL8305SC features: (1)5-port integrated switch controller with memory and transceiver for 10Base-T and 100Base-TX; (2)Supports the fifth port MAC circuit as PHY mode MII, SNI for router applications, and MAC mode MII for HomePNA or VDSL solutions; (3)Supports the fifth port PHY circuit as PHY mode MII for router and Gateway applications; (4)All ports support 100Base-FX with optional flow control enable/disable and full/half-duplex setting; (5)Supports FEFI function for fiber application; (6)Non-blocking wire-speed reception and transmission and non-head-of-lineblocking forwarding; (7)Fully compliant with IEEE 802.3/802.3u auto-negotiation function.

Diagrams

RTL8305SC block diagram

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Data Sheet

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