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Home > download > Product Catalogue > Interface > UC-340G USB to UART TTL RS-232 USB2Serial

UC-340G USB to UART TTL RS-232 USB2Serial




    1, Low Cost , easy to use.
    2, USB 2.0 Full Speed
    3, Hardware Full duplex UART with embedded buffer 
    4, Support baud rate 50bps to 2Mbps
    5, TTL-5V level and support 3.3V to 5V level
    6, Pin to Pin compatible with UC-2102 and USB2Serial Light




Electrical Characteristics


    Power supply:5.5V
    IO Level:TTL-5V




    Operation Temperature:0°C to 55°C
    Operating Humidity:0 to 90% non-condensing
    Storage Temperature:-20°C to 65°C


The difference between USB2Serial Light and UC-2102 and UC-340G


No. Item BUONO USB2Serial Light UC-2102 UC-340G
1 USB Chip C8051F321 CP2102 CH340G
2 UART Voltage Level TTL-3.3V TTL-3.3V TTL-5V
3 Pinout Same Same Same

5 times DTR toggled after power up

(The will lead the Arduino MCU reset 5times , delay the power up speed)


Yes Yes
5 Driver Arduino Native driver Form Silabs Form WCH
6 Cost High Mid Low
7 Known issue No No Can not used with Arduino IDE 1.6.8 , it will cause the MCU reset repeatedly


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