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RTL8305NB-CG Single Chip 5-Port 10/100M Ethernet Switch Controller
The Realtek RTL8305NB-CG is a high-performance Ethernet switch controller IC that integrates five 10/100Mbps Fast Ethernet ports into a single compact chip. Designed for SOHO switches, routers, IP cameras, and embedded networking devices, this controller delivers reliable, cost-effective, and power-efficient networking solutions.
Whether you’re building unmanaged Ethernet switches, wireless routers, or smart IoT devices, the RTL8305NB-CG provides advanced switching functions like VLAN, QoS, MAC address learning, and broadcast storm control, ensuring smooth and stable data communication.
Technical Datasheet [PDF]
Key Features
5-Port Fast Ethernet Switch Controller IC – Supports 5x 10/100 Mbps Ethernet ports.
High-Speed Switching Performance – Non-blocking wire-speed forwarding for reliable data transfer.
Full/Half Duplex & Auto MDI/MDIX – IEEE 802.3/802.3u compliant for flexible connectivity.
Advanced Networking Functions – VLAN, QoS, broadcast storm control, and MAC address table support.
Efficient Memory Management – Built-in buffer management enhances packet forwarding.
Low Power Consumption – Ideal for energy-efficient networking devices.
Compact QFN-48-EP(6x6) Package – Easy integration in space-constrained hardware designs.
Applications
Unmanaged Ethernet Switches – Cost-effective SOHO and small office switches.
Wireless Routers & Gateways – Reliable network backbone for home and office use.
IoT & Smart Devices – Embedded networking in IP cameras, DVR/NVR systems, and smart home hubs.
Industrial Networking – Control systems, automation devices, and industrial Ethernet applications.
VoIP & Multimedia Devices – Stable connectivity for communication and streaming equipment.
