南京沁恒电子有限公司USB通用设备接口芯片资料，开发源程序-Constant Electronics Co., Ltd. Nanjing Qin USB Universal Device Interface chip data, the development of source

CH341中文资料，一种很好用的USB转COM口芯片，外围电路简单。-CH341 Chinese information, a good used chip USB to COM port, a simple external circuit.

CH341 English DataSheet Used for USB convert to serial port/USB convert to IrDA infrared/USB convert to printer port This datasheet is about USB convert to serial port/USB infrared adapter SIR