ATTINY261A-MFR by Microchip Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。ATTINY261A-MFR Price reference $ 1.645600。ATTINY261A-MFR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information ATTINY261A-MFR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial