It's a CH340G SMD USB to TTL converter IC. This converter IC operate on 3.3v/5V dc and it's support baud rate is 2400bps to 115200bps. This is a USB bus converter chip and it can realize USB convert to the serial interface. In serial interface mode this IC supplies common modem l signal.
Specification
| IC | CH340G |
| supports baud rate | 2400bps to 115200bps |
| Supports common MODEM liaison signal | RTS, DTR, DCD, RI, DSR and CTS |
| Support source voltage | 5V and 3.3V |
| package | SSOP-20 |
| Country of Origin | China |
