想亚微电子 REALTEK瑞昱 RTL8204B-VC-GR ,RTL8208G-GR授权代理

The RTL8204B-VC-GR is a single-chip highly integrated 5-port,
10Base-T/100Base-TX Ethernet transceiver implemented in 0.16μm CMOS technology. It is currently the world’s smallest 5-PHY chip package. Flexible hardware settings are provided to configure the various operating modes of the chip.

The RTL8204B-VC-GR provides 5 separate and independent channels. Each channel consists of a SMII/SS-SMII interface-to-MAC controller, and hardware pins are used to configure the interface for SMII, or SS-SMII mode.

A PECL (Pseudo Emitter Coupled Logic) receiver accepts input from a transceiver and directly passes it to a clock recovery circuit for data/clock recovery. 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.

A built-in UTP cable tester diagnoses an open/short fault in an attached cable. The RTL8204B-VC-GR also features very low power consumption. Additionally, pin-outs are designed to provide optimized direct routing, which simplifies the layout work and reduces possible EMI noise.

• Supports 5-port integrated physical layer and transceiver for 10Base-T and 100Base-TX

• Robust baseline wander correction for improved 100Base-TX performance

• Complies with IEEE 802.3/802.3u

• IEEE 802.3u compliant auto negotiation for 10/100Mbps control

• Hardware controlled Flow control advertisement ability

• Supports SMII/SS-SMII interfaces

• Very low power consumption

• Supports two power reduction methods:

  • Power saving mode (cable detection)

  • Power down mode

• Power-on auto reset function eliminates the need for external reset circuits

• Crossover detection and auto correction

• Polarity detection and Auto Correction

• Flexible serial/scan LED display modes

• Cable tester for diagnosing open/short faults in attached cables

• Supports 125MHz clock output

• 128-pin QFP package

• 1.8V/3.3V or 1.8V/2.5V power supply

• 0.16μm, CMOS technology

• 5 PHY for Fast Ethernet switch with twisted pair interface