RTL8305NBI-CG

The RTL8305NBI-CG is a low-power, 5-port 10/100 Ethernet switch controller from Realtek. It integrates Layer 2 switching, auto-negotiation, and MAC/PHY functions in a single chip, supporting non-blocking wire-speed performance.
Key features:
- 5 ports (4x 10/100Mbps + 1x MII/RMII uplink).
- Supports store-and-forward switching.
- Auto-MDI/MDIX for all ports.
- VLAN, QoS, and flow control (802.1p/1Q).
- Low power consumption (<1W).
- Industrial temperature range (-40°C to +85°C).
Applications include industrial control, IP cameras, and embedded networking. The RTL8305NBI-CG is cost-effective and simplifies designs with minimal external components.
For details, refer to the Realtek datasheet.

The RTL8305NBI-CG is a 5-port 10/100 Ethernet switch controller. Equivalent alternatives include:
- Microchip KSZ8863RLL
- Broadcom BCM5325MKMMLG
- Marvell 88E6055
- Realtek RTL8306E (6-port variant)
These chips offer similar 5-port Fast Ethernet switching with integrated PHYs and basic management features. Verify pin compatibility and feature requirements before substitution.

The RTL8305NBI-CG is a low-power, 5-port 10/100 Ethernet switch controller with the following key features:
- 5-Port Switch: Integrates 4 LAN ports and 1 uplink port.
- 10/100Mbps Support: Auto-negotiation for speed and duplex mode.
- Low Power Consumption: Optimized for energy efficiency.
- Auto-MDI/MDIX: Eliminates the need for crossover cables.
- Flow Control: Supports IEEE 802.3x for full-duplex and backpressure for half-duplex.
- VLAN Support: Basic 802.1Q VLAN tagging.
- QoS Prioritization: 4 priority queues per port for traffic management.
- MAC Address Table: 1K entries with auto-learning/aging.
- MII/RMII Interfaces: Flexible connectivity options.
- Single 3.3V Supply: Simplified power design.
Ideal for cost-sensitive networking applications like IP cameras, VoIP, and small office switches.

The RTL8305NBI-CG is a 5-port 10/100 Ethernet switch IC with an integrated PHY.
- Pin Count: 48-pin (LQFP package).
- Key Functions:
- 5-port 10/100Mbps switch with auto-negotiation.
- Supports MII/RMII interfaces for external MAC.
- Auto MDI/MDIX for all ports.
- QoS (Quality of Service) support.
- VLAN and port-based traffic control.
- Low power consumption.
It is commonly used in embedded networking applications.

The RTL8305NBI-CG is manufactured by Realtek Semiconductor Corp., a Taiwanese company specializing in networking and multimedia chips.
Realtek is a leading fabless semiconductor company, known for producing cost-effective ICs for Ethernet controllers, Wi-Fi, audio codecs, and other consumer electronics. The RTL8305NBI-CG is a 5-port 10/100 Ethernet switch controller, commonly used in networking devices.
Founded in 1987, Realtek serves global markets with a strong focus on innovation and affordability.

The RTL8305NBI-CG is a 5-port 10/100Mbps Ethernet switch controller, commonly used in:
1. Home/SOHO Networking – Basic switches for small networks.
2. Industrial Control – Reliable connectivity in automation systems.
3. IP Cameras & Surveillance – Network expansion for security devices.
4. Embedded Systems – Integration in IoT and smart devices.
5. Legacy Network Upgrades – Cost-effective 100Mbps solutions.
It supports auto-negotiation, VLAN, and QoS, making it versatile for low-power, compact designs.

The RTL8305NBI-CG is a 5-port 10/100 Ethernet switch controller from Realtek. It comes in a 48-pin LQFP (Low-Profile Quad Flat Package) with dimensions of 7x7 mm. This package type is surface-mountable, compact, and suitable for cost-effective networking applications.