CH340 Integrated Circuit - USB Communication Chip
A programmer used, for example, in Arduino, where it is responsible for data transmission via the USB port.
Full speed USB interface, compatible with USB 2.0 interface.
It works with a minimum of external components: quartz and a minimum of four capacitors.
Provides a virtual serial port for upgrading existing serial port devices or adding serial ports
on the computer.
It supports all existing applications that use serial ports without changing the existing code
Full duplex hardware serial interface with internal FIFO interface. Transmission speed from 50bps to 2 Mbps.
Supports common RTS, DTR, DCD, RI, DSR and CTS flow control signals.
Supports RS232, RS422 and RS485 with external shifting components.
It supports 5V and 3.3V.
RoHS Compliant Housing - SO-16 Slim Body.
More information in the CH340 CH340 datasheet