CH343 USB supports 1.8V, 2.5V, 3.3V, 5V IO voltages


CH340 USB to Serial Chips are very popular but only supports 5V or 3.3V IO Levels. The new CH343 supports 1.8V, 2.5V, 3.3V, and 5V IO voltage! On top of that it can do 6 Mbps Baud Rate, which is 3x that of CH340.


The 5 other impactful features of CH343 are:


1. Integrated EEPROM to configure chip parameters rather than relying on an external one


2. Integrated 12 MHz clock, so no external crystal required


3. Integrated Unique ID (USB Serial Number)


4. Automatic Identification & setting of communication baud rate (below 115200bps)


5. Comes in 3 packages- QFN16, SOP16, and ESSOP10


Datasheet is here:

https://lnkd.in/gs6jXyNu


Quick comparison chart :

https://lnkd.in/grx3nyTW


Chip Price - Under $1 in single units, or around 55 cents per unit for 100+ orders


Where to buy the chip? - https://lnkd.in/gGmBDp2y


Want to buy as a module? - https://lnkd.in/g4MqtaFR


Drivers & Configuration tools can be found here: https://lnkd.in/gjsMcQGU


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