CH9434M brand manufacturers: WCH(Jiangsu Qin Heng), Elecinsight stock, CH9434M reference price.WCH(Jiangsu Qin Heng). CH9434M parameters, CH9434M Datasheet PDF and pin diagram description download.You can use the CH9434M Interface - UARTs (Universal Asynchronous Receiver Transmitter), DSP Datesheet PDF, find CH9434M pin diagram and circuit diagram and usage method of function,CH9434M electronics tutorials.You can download from the Elecinsight.