CH340N is a USB bus adapter chip, which realizes USB to serial port or USB to print port.
This particular variant CH340N is designed with internal clock and small SOP8 package saving a lot of PCB space for certain applications.
- Full-speed USB device interface, compatible with USB V2.0.
- Hardware full-duplex serial port, built-in transceiver buffer, support communication baud rate 50bps~2Mbps..
- Support 5V supply voltage and 3.3V supply voltage and even 3V supply voltage.
- CH340N built-in clock, no external crystal oscillator required.