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CH340 USB Bus Adapter
A versatile USB bus adapter for serial, parallel, and IrDA interfaces
- Full-speed USB interface: compatible with USB 2.0
- Operates with minimal external components: crystal and four capacitors
- Virtual serial port: upgrade existing devices or add serial ports
- Supports existing applications: no need to change code
Specifications:
- Operating Temperature: -40 to 85°C
- Storage Temperature: -40 to 125°C
- Supply Rail Voltage: -0.5 to 6.5V
- IO Pin Voltage: -0.5 to VCC+0.5V
The CH340 series, including the CH340G, provides common MODEM signals to enable UART integration with a computer or conversion of UART devices to USB interface. The CH340G specifically supports serial interfaces and uses the CH341 driver. With a hardware full-duplex serial interface and support for various flow control signals, this adapter ensures seamless connectivity. It is also compatible with RS232, RS422, and RS485 with the use of external components for level shifting. Additionally, the CH340 supports both 5V and 3.3V operations.
For further details, refer to the CH340G IC Datasheet.
* Images are for illustration only; actual product may vary.