Part Number : RTL8309N
Function :Single-Chip 8-Port 10/100Mbps Ethernet Switch Controller
Manufacturer : Realtek Semiconductor
Pinout : 
Description
The RTL8309N is an 8-port 10/100M Ethernet switch controller that integrates memory, eight MACs, and eight physical layer transceivers for 10Base-T and 100Base-TX operation into a single chip.
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Other datasheets in the file : RTL8309N