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USB to serial chip CH340 IC-STOCKS

  • Author:Salmon Ye
  • Source:www.ic-stocks.com
  • Release on:2019-11-28
Introduction

CH340 is a USB bus convert chip and it can realize USB convert to serial interface, USB convert toIrDA infrared or USB convert to printer interface.In serial interface mode, CH340 supplies common MODEM liaison signal, used to enlargeasynchronous serial interface of computer or upgrade the common serial device to USB bus directly.

Moredetail about USB convert to printer interface please referring to the second manual CH340DS2.In infrared mode, add infrared transceiver to CH340 can compose USB infrared adapter, realize SIRinfrared communication.


Features

● Full speed USB device interface, conforms to USB Specification Version 2.0, only needs crystal andcapacitance external.

● Emulate standard serial interface, used to upgrade the former peripheral device, or add excess serialinterface through USB.

● Totally compatible with serial application program in computer endpoint Windows operation system.

● Hardware full duplex serial interface, set transceiver buffer, supports communication baud rate variesfrom 50bps to 2Mbps.

● Supports common MODEM liaison signal RTS, DTR, DCD, RI, DSR and CTS.

● Through adding level converter equipment to supply RS232, RS485, RS422 and other interface.

● Supports IrDA criterion SIR infrared communication, supports baud rate varies from 2400bps to115200bps.

● For it is through USB converts to serial interface, only compatible with application layer not totally.

● Software compatible with CH341, using drive of CH341 directly.

● Support 5V and 3.3V source voltage.

● Supply SSOP-20 package without lead, compatible with RoHS.




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