AT90USB1287-AU by Microchip Design and production,in Shenzhen Xinhuantong Technology Co., Ltd. Spot sales,And can pass Shenzhen Xinhuantong Technology Co., Ltd. Purchasing。AT90USB1287-AU Price reference $ 8.950000。AT90USB1287-AU - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information AT90USB1287-AU Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial