8-port 100M switch_RTL8309N V1.1

This project is based on the design of RTL8309N 8-port 100M switch, TYPE-c power supply, double-layer network port, independent LED design to save cost, welding and use without configuration
 
RTL8309N is an 8-port Fast Ethernet switch controller, which integrates 8 MACs and 8 physical layer transceivers for 10Base-T and 100Base-TX operations into a single chip, including a 2K entry address lookup table.
Features
8-port switch controller with transceiver for10Base-T and 100Base-TX with:
8-port 10/100M UTP
Non-blocking wire-speed reception and transmission and non-head-of-line-blocking forwarding
Complies with IEEE 802.3/802.3u auto-negotiation
Built-in high efficiency SRAM for packet buffer, with 2K-entry lookup table and two 4-way associative hash algorithms
2K byte maximum packet length
Flow control fully supported:
Half duplex: Back pressure flow control
Full duplex: IEEE 802.3x flow control
 
Internal structure:
 
To ensure stable operation, please use 5V2A power supply and maintain good heat dissipation, heat sink optional
PCB preview:
 
Welding use:
Close-up:
(This perspective plus blur is amazing)
 
The speed is 100M full speed. After the modification of V1.0, the stability has been used for 24H*60D without any abnormality. V1.1 can be directly used for GERBER board welding.
 
You have seen this, please like and collect it~~(*╹▽╹*)~~
 
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