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

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The RTL8363SB-CG is an LQFP128, high-performance 2+2-port 10/100/1000M Ethernet switch. It features low-power integrated dual-port Gigabit PHYs that support 1000Base-T, 100Base-TX, and 10Base-T.

For specific applications, the RTL8363SB supports two extra interfaces that can be configured as GMII/RGMII/MII interfaces. The RTL8363SB 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.

The embedded packet storage SRAM in the RTL8363SB features superior memory management technology to efficiently utilize memory space. The RTL8363SB integrates a 2K-entry look-up table with a 4-way XOR Hashing algorithm for address searching and learning. The table provides read/write access from the EEPROM Serial Management Interface (SMI), Media Independent Interface Management (MIIM), or SPI Interface. Each of the entries can be configured as a static entry. Normal entry aging time is between 200 and 400 seconds. Eight Filtering Databases are used to provide Independent VLAN Learning and Shared VLAN Learning (IVL/SVL) functions.

Symmetry Electronics is an authorized Realtek distributor.


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Single-chip 2+2-port gigabit non-blocking switch architecture
Extra Interface (Extension GMAC0 and Extension GMAC1) supports
Full-duplex and half-duplex operation with IEEE 802.3x flow control and backpressure
Supports 9216-byte jumbo packet length forwarding at wire speed
Supports Realtek Cable Test (RTCT)
Supports 64-entry ACL Rules
Supports IEEE 802.1Q VLAN
Supports IVL, SVL, and IVL/SVL
Supports Spanning Tree port behavior configuration
Supports IEEE 802.1x Access Control Protocol
Supports Auto Denial-of-Service Protection
Supports H/W IGMP/MLD Snooping

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