ATMEGA48P-20MMU by Microchip Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。ATMEGA48P-20MMU Price reference $ 2.284800。ATMEGA48P-20MMU - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information ATMEGA48P-20MMU Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial