LM239DR by TI Design and production,in HongKong RichShine Technology Co., Limited Spot sales,And can pass HongKong RichShine Technology Co., Limited Purchasing。LM239DR Price reference $ 0.390000。LM239DR - 。You can download LM239DR Chinese information、Pin map、DatasheetData sheet function specification,In the information LM239DR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial