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CH340G是由中国公司WCH生产的CH340 USB转串口转换器芯片的一个变种 模型名称末尾的“G”表示它是一种SOIC
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2023-08-09
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CH340G是由中国公司WCH生产的CH340 USB转串口转换器芯片的一个变种。模型名称末尾的“G”表示它是一种SOIC(小轮廓集成电路)封装。 CH340G是标准USB转串口转换器的低成本替代品,可用于将微控制器和其他电子设备与计算机进行接口。它已经广泛用于DIY电子社区中,用于编程像Arduino板之类的微控制器。与它的前身相比,CH340G具有更低的功耗,这使它适用于电池供电的设备。 CH340G需要在计算机上安装驱动程序才能作为串口转换器进行功能,它可以轻松地从WCH网站或各种开源代码库中下载。但是,人们对驱动程序的质量和某些系统的兼容性问题有所担忧,因此在使用CH340G芯片之前,始终建议检查驱动程序的可用性和兼容性。
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DreamCity Innovations
WCH CH340G Datasheet
WCH CH340 Series USB Interface Integrated Circuit
CH340G USB to UART Interface
Datasheet
WCH Version 1E
DreamCity Version 1.0
Disclaimer from DreamCity Innovations
This is a third-party translation of WCH’s CH340 Series chipset’s Chinese datasheet, with
information regarding CH340G chip extracted. The two other chips sharing the same
datasheet, CH340R and C340T, have official English version.
1. Overview
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.
2. Features
•
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.!
DreamCity Innovations
Page ! of !1 6
WCH CH340G Datasheet
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