Tutorial: CH340G

USB-to-serial converter.

CH340G

Tutorial / documentation

Modules & interfaces

First tests with CH340G

  1. Identify the exact CH340G variant, package and manufacturer documentation.
  2. Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
  3. Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
  4. Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : convertisseur usb vers liaison série.

CH340G

USB-to-serial converter.

  • Identify the exact CH340G variant, package and manufacturer documentation.
  • Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
  • Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
  • Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : convertisseur usb vers liaison série.
Technical documentation

Vérifier expérimentalement la fonction de CH340G avec le circuit d’application du fabricant.