WCH CH340C

CH340 is a USB bus adapter chip, can realize USB to serial port or USB to print port. In serial port mode, CH340 provides commonly used MODEM contact signals, which are used to expand asynchronous serial ports for computers, or directly upgrade ordinary serial port devices to the USB bus.

• Full-speed USB device interface, compatible with USB V2.0.
• Simulation of standard serial ports, used to upgrade original serial port peripherals, or add additional serial ports through USB.
• The serial port application program under the Windows operating system on the computer side is fully compatible, no need to be modified.
• Hardware full-duplex serial port, built-in transceiver buffer, supports communication baud rate of 50bps~2Mbps.
• Support commonly used MODEM contact signals RTS, DTR, DCD, RI, DSR, CTS
• Provide RS232, RS485, RS422 interfaces by adding level conversion devices.
• CH340R supports IrDA specification SIR infrared communication, and baud rate from 2400bps to 115200bps.
• Built-in firmware, and software compatible with CH341, you can use the VCP driver of CH341 directly.
• Support 5V and 3.3V supply voltage.
• CH340C/N/K/E/X/B has a built-in clock, requires no external crystal. CH340B also has a built-in EEPROM for configuring the serial number.
• SOP-16, SOP-8 and SSOP-20, ESSOP-10, MSOP-10 lead-free packages are available, RoHS compatible.