MEMORY DEVICE AND MANAGEMENT METHOD OF MEMORY DEVICE

摘要

PURPOSE: A memory device and a management method thereof are provided to reduce the size of a space storing meta data of a nonvolatile RAM. CONSTITUTION: A flash memory(130) comprises a plurality of pages. A nonvolatile RAM(110) stores a first mapping table between each physical page address of the pages and a logical page address. A volatile RAM(120) stores a second mapping table between each physical page address of the pages and the logical page address. The first mapping table is used when the physical page address is changed into the logical page address. The second mapping table is used when the logical page address is changed into the physical page address.