The Realtek RTL8271B-VN-CG is a highly integrated single-chip 10/100M Ethernet Transceiver. It supports both 10BASE-T and 100BASE-TX Ethernet standards, making it suitable for a wide range of networking applications. This transceiver is designed to provide a cost-effective and reliable solution for adding Ethernet connectivity to various devices.

Applications

• Network Interface Cards (NICs)
• Embedded systems requiring Ethernet connectivity
• Routers and switches for small networks
• IP Phones
• Set-top boxes

Features

• Supports 10BASE-T and 100BASE-TX operations
• Compliant with IEEE 802.3u standards
• Supports MII/RMII interface
• Auto-negotiation function for automatic speed and duplex configuration
• Automatic polarity correction
• Low power consumption
• Integrated filters to reduce EMI
• Built-in loopback test capability

Benefits

• Provides a robust and efficient solution for Ethernet connectivity
• Reduces system cost and complexity due to high integration
• Ensures interoperability with other Ethernet devices through compliance with IEEE standards
• Simplifies network configuration with auto-negotiation
• Enhances system reliability with built-in diagnostic features

Technical Specifications

The RTL8271B-VN-CG supports both full-duplex and half-duplex operation at 100 Mbps and 10 Mbps. It typically operates from a 3.3V power supply and offers various power-saving modes to reduce energy consumption. The chip integrates transmit and receive filters to minimize external component count. It is commonly available in a QFN package.

The auto-negotiation function allows the RTL8271B-VN-CG to automatically detect the speed and duplex mode of the connected device, simplifying network configuration. The automatic polarity correction feature addresses wiring errors, ensuring reliable communication. The MII/RMII interface provides flexible connectivity options to different MAC controllers.