AT27C256R-45JU by ATMEL Design and production,in INSO(INCREDIBLE SOLUTION) Spot sales,And can pass INSO(INCREDIBLE SOLUTION) Purchasing。AT27C256R-45JU Price reference $ 0。AT27C256R-45JU - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information AT27C256R-45JU Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial