Item specifics
Description
RTL8363NB-VB-CG Product Overview
The Realtek RTL8363NB-VB-CG is a high-performance, low-power Layer 2 Managed 2+1-port 10/100/1000M Ethernet switch controller from Realtek Semiconductor. Housed in a QFN-76 (9×9mm) compact package, the RTL8363NB-VB-CG integrates low-power dual-port 10/100/1000M PHYs supporting 1000Base-T, 100Base-TX, and 10Base-T. The RTL8363NB-VB-CG integrates all functions of a high-speed switch system into a single CMOS device, including SRAM for packet buffering, non-blocking switch fabric, and internal register management. The chip provides an extension GMAC1 interface configurable as RGMII, MII, TMII, or RMII for connecting to external PHYs, MACs, CPUs, or RISC processors. The RTL8363NB-VB-CG supports rich Layer 2 management features including VLAN, QoS, IGMP Snooping, ACL, and port mirroring. Only a 25MHz crystal is required, with an optional EEPROM for internal register configuration. The chip is an ideal core solution for routers, switches, home gateways, and IP cameras.
RTL8363NB-VB-CG Key Features
The RTL8363NB-VB-CG embodies Realtek's deep expertise in high-performance Ethernet switch chip design. The chip features a single-chip 2+1-port gigabit non-blocking switch architecture with 2 embedded 10/100/1000Base-T PHYs, each port supporting full-duplex 10/100/1000M connectivity (half-duplex supported in 10/100M mode). The RTL8363NB-VB-CG employs advanced memory management technology for efficient packet buffer utilization. The chip includes a 2048-entry lookup table with a 4-way XOR hashing algorithm for address searching and learning. 16 Filtering Databases provide Independent VLAN Learning (IVL) and Shared VLAN Learning (SVL) functions. The chip supports full-duplex IEEE 802.3x flow control and optional backpressure for half-duplex operation. The RTL8363NB-VB-CG supports broadcast/multicast output dropping, forwarding broadcast/multicast packets only to non-blocking ports. For IP multicast applications, it forwards IPv4 IGMPv1/v2/v3 and IPv6 MLDv1/v2 snooping protocol packets. The chip supports 48 ACL rule checks with multiple action options, with ACL rule keys based on packet physical port, Layer 2, Layer 3, and Layer 4 information. Actions include discard/allow/redirect/mirror, priority modification, and rate limiting. The RTL8363NB-VB-CG supports Spanning Tree Protocol (STP) and Multiple Spanning Tree Protocol (MSTP) with 16 group configurations. The chip supports IEEE 802.1x port-based/MAC-based access control and 1 port mirroring group. For real-time and multimedia applications, each received packet supports 8 priority assignment methods, and each output port supports 8 priority queues with weighted ratio configuration. Queue scheduling algorithms include Strict Priority (SP), Weighted Fair Queuing (WFQ), Weighted Round Robin (WRR), or hybrid mode. The chip provides a 4096-entry VLAN table supporting 802.1Q port-based, tag-based, and protocol-based VLAN operations. The RTL8363NB-VB-CG supports IEEE 802.3az Energy Efficient Ethernet (EEE) for reduced power consumption during low traffic. The chip also features Cable Diagnostics, Programmable LED indication, and low-power mode. The RTL8363NB-VB-CG operates at 3.3V with a temperature range of 0℃ to +70℃.
RTL8363NB-VB-CG Applications
With its highly integrated 2+1-port Gigabit switching capability, rich Layer 2 management features, and flexible interface configuration, the RTL8363NB-VB-CG is widely deployed in various networking applications. The RTL8363NB-VB-CG is an ideal core chip for 2-port Gigabit switches with one RGMII/RMII/TMII/MII router interface, suitable for home gateways, SOHO routers, and enterprise switches. The RTL8363NB-VB-CG is also suitable for IP cameras, providing stable wired network connectivity for security surveillance. In Network Attached Storage (NAS) devices and industrial Ethernet switches, the RTL8363NB-VB-CG delivers high-performance data switching. Additionally, the RTL8363NB-VB-CG can be used in xPON gateways, xDSL routers, and Optical Network Units (ONUs) for broadband access applications.
RTL8363NB-VB-CG Key Advantages
The RTL8363NB-VB-CG stands out as a mature, commercially available Layer 2 Managed 2+1-port Gigabit Ethernet switch controller that strikes an excellent balance between performance, features, and cost. Housed in a QFN-76 (9×9mm) compact package, the chip integrates 2 low-power Giga-PHYs and a complete switching engine. The RTL8363NB-VB-CG supports a rich set of Layer 2 management features including VLAN, QoS, IGMP/MLD snooping, ACL, port mirroring, STP/MSTP, and 802.1x access control, meeting diverse requirements from SOHO to enterprise applications. The extension GMAC1 interface supports RGMII, MII, TMII, and RMII configurations, offering flexible connectivity to external PHYs, MACs, or CPUs. The RTL8363NB-VB-CG supports IEEE 802.3az Energy Efficient Ethernet (EEE) for reduced power consumption during low traffic. Only a 25MHz crystal is required for operation, with an optional EEPROM for internal register configuration. The RTL8363NB-VB-CG offers system integrators and OEMs a highly competitive Gigabit switching solution.
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FAQs:
1 What is the RTL8363NB-VB-CG chip
RTL8363NB-VB-CG is a 5 plus 2 port Gigabit Ethernet switch controller from Realtek integrating PHY physical layer and a switching management engine often used in cost effective routers and switches.
2 What package and pin count does it use
RTL8363NB-VB-CG adopts a QFN76 no lead surface mount package with 76 pins and an exposed thermal pad on the bottom making it suitable for compact high density PCBA designs.
3 What network speeds does it support
All switching ports support auto negotiation of 10Mbps 100Mbps and 1000Mbps Gigabit speeds and are fully compliant with IEEE 802.3 standards.
4 How many network ports are integrated inside the chip
RTL8363NB-VB-CG integrates 5 independent Gigabit Ethernet switching ports and provides 2 RGMII or MII interfaces for external host CPU connection or other switch chip uplinking.
5 What are the operating voltage and temperature ranges
RTL8363NB-VB-CG uses a multi voltage rail design typically including 3 point 3 volts 1 point 2 volts and other supplies. The commercial temperature range is from zero degrees Celsius to plus 70 degrees Celsius.
6 What application scenarios is this chip suitable for
With its rich port configuration and built in management features RTL8363NB-VB-CG is widely used in Gigabit wireless routers enterprise switches smart gateways and optical modems.
7 What network management protocols and features are built in
RTL8363NB-VB-CG supports VLAN partitioning port based QoS priority management IGMP Snooping and port mirroring for standard network management.
8 How should it connect to the host CPU
RTL8363NB-VB-CG provides two RGMII or MII uplink interfaces to connect to the Ethernet MAC controller of the external host SoC or CPU for high speed packet exchange.
9 What are the PCB design considerations for the QFN76 package
For RTL8363NB-VB-CG, the exposed thermal pad on the bottom must be grounded to a large copper area for heat dissipation. The Gigabit Ethernet differential traces must strictly follow 100 ohm impedance matching and equal length routing.
10 What external components are needed for the peripheral circuit
RTL8363NB-VB-CG requires a 25 megahertz high precision crystal oscillator for clock reference and standard magnetic isolation transformers and RJ45 connectors on each Gigabit port.