AT28HC64B-70SU by Microchip Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。AT28HC64B-70SU Price reference $ 5.657600。AT28HC64B-70SU - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information AT28HC64B-70SU Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial