High-speed storage device and method for high-speed update data

Present invention discloses a rapid storage device. It contains nonvolatile storage, control unit and storage cell, wherein nonvolatile storage for backing up updating block data, storage cell erasing updating block data after nonvolatile storage nonvolatile storage executing backing up operation, control unit updating current updating block according to new data and the backed data in nonvolatile storage. Present invention also discloses a quickly updating data method, it contains backing up corresponded updating block data to nonvolatile storage, then erasing updating block, updating current updating block according to new data and backed data in nonvolatile storage. Present invention discloses a quickly updating data method. Present invention also provided device and method speed up flash memory updating data speed and prolong flash memory service life.