STPM11ATR by STMicroelectronics Design and production,in City Time Technology Trading Co., Limited Spot sales,And can pass City Time Technology Trading Co., Limited Purchasing。STPM11ATR Price reference $ 0。STPM11ATR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STPM11ATR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial