LM324DR by TI Design and production,in HongKong RichShine Technology Co., Limited Spot sales,And can pass HongKong RichShine Technology Co., Limited Purchasing。LM324DR Price reference $ 0.100650。LM324DR - 。You can download LM324DR Chinese information、Pin map、DatasheetData sheet function specification,In the information LM324DR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial