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CH340G (SMD SOP-16 Package) USB to Serial TTL Converter IC

69.00 + GST

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CH340 is a series of USB bus adapters, that provides serial, parallel or IrDA interfaces over the USB bus (note: CH340G supports serial interface only). The CH340G integrate circuit provides common MODEM signals to allow adding a UART to a computer or converting existing UART devices to USB interface.


• Full-speed USB interface, compatible with USB 2.0 interface.

• Operates with a minimum amount of external components: a crystal and a minimum of four capacitors.

• Provides a virtual serial port for upgrading existing serial port devices or adding serial ports to a PC.

• Supports all existing applications using serial ports without the need of changing existing code.

• Hardware full-duplex serial interface with internal FIFO. Baud rate range from 50bps to 2Mbps.

• Supports common flow control signals RTS, DTR, DCD, RI, DSR and CTS.

• Supports RS232, RS422 and RS485 with external level shifting components.

• Uses CH341 driver.

• Supports 5V and 3.3V operation.

• RoHS-compliant narrow body SO-16 package.


Parameter Min Max Unit
TA-Operating temperature -40 85 ºC
TS-Storage temperature -40 125 ºC
VCC-Supply rail voltage, reference to GND pin -0.5 6.5 V
VIO-IO pin voltage, reference to GND pin -0.5 VCC+0.5 V


* product image for illustration purposes only. actual product may vary.


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