Layer 2 Managed 2+1 port 10/100/1000M Switch Controller

General Description

The RTL8363NB-VB-CG is a QFN76, high-performance 2+1-port 10/100/1000M Ethernet switch featuring low-power integrated dual-port 10/100/1000M PHYs that support 1000Base-T, 100Base-TX, and 10Base-T.

For specific applications, the RTL8363NB-VB supports an extra interface that can be configured as a RGMII/MII interface. The RTL8363NB-VB integrates all the functions of a high-speed switch system; including SRAM for packet buffering, non-blocking switch fabric, and internal register management into a single CMOS device. Only a 25MHz crystal is required; an optional EEPROM is offered for internal register configuration


  • Single-chip 2+1-port 10/100/1000M non-blocking switch architecture
  • Embedded 2-port 10/100/1000Base-T PHY
  • Each port supports full duplex 10/100/1000M connectivity (half duplex only supported in 10/100M mode)
  • Extra Interface (Extension GMAC1) Supports
    • Media Independent Interface (MII)
    • Reduced 10/100/1000M Media Independent Interface (RGMII)
    • Turbo Media Independent Interface (TMII)
    • Reduced Media Independent Interface (RMII)
  • Full-duplex and half-duplex operation with IEEE 802.3x flow control and backpressure


  • 2 ports 10/100/1000 Switch with one RGMII/RMII/TMII/MII router