AT89S52-24JU by Microchip Design and production,in CHIPS-ORIGIN ELECTRONICS CO.,LIMITED Spot sales,And can pass CHIPS-ORIGIN ELECTRONICS CO.,LIMITED Purchasing。AT89S52-24JU Price reference $ 2.910400。AT89S52-24JU - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information AT89S52-24JU Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial