RTL8391M-CG

LAYER 2 + MANAGED 28 10/100/1000M-PORT SWITCH CONTROLLER

General Description

The RTL8391M is a 28-port 10/100/1000M Managed Ethernet MAC Switch Controller. It supports 7 pairs of 5Gbps QSGMII to connect to external 28 ports Gigabit Ethernet PHY transceivers. The mode is 24 10/100/1000BASE-T + 4 combo 10/100/1000BASE-T/SFP.

The RTL8391M is embedded with a up to 700MHz MIPS-34Kc CPU. It supports a 32-bit data bus, 32Mbyte SPI flash (3-byte mode) or 64MB SPI flash (4-byte mode), and 256M-Byte DDR3 SDRAMs (maximum). It is also embedded a 96KB SRAM can be used for time-sensitive application.

Features

  • RTL8391M is 56 Gbps switch capacity
  • RTL8391M supports 7 pairs of 5Gbps QSGMII to 28 ports 10/100/1000M Ethernet PHY. 
  • RTL8391M supports 24 10/100/1000BASE-T + 4 combo 10/100/1000BASE-T/SFP
  • Maximum 32MByte SPI Flash (3-byte mode) or maximum 64MByte SPI Flash (4-byte mode) and maximum 256MBytes DDR3 SDRAMs for internal MIPS-34Kc
  • Supports flash-only solution
  • Single/Dual/Quad SPI flash
  • 96Kbyte SP-SRAM
  • Embedded MIPS-34Kc with MMU

Applications

  • Managed 24 10/100/1000BASE-T + 4 combo 10/100/1000BASE-T/SFP