Method for address mapping and managing mapping information, and flash memory thereof

The present invention is a logic-How to store the physical mapping (logical-physical mapping) method using a technique which minimizes the performance degradation at the time of the flash memory access, and information relating to the logical physical mapping in a flash memory efficiently manage, and that how to relate to the flash memory using. The process according to the invention the step and the offset of the determination result of determining whether the sector of the data and the offset matches is empty matched to the recording on a physical page having a most recently written logical page number written in the data to be written If the sector is blank, the step of writing data to a sector of which the offset matches in the physical page; And if it is determined that the sector of which the offset matches is not empty, and write data by selecting an empty physical page to the sector in which the data and the offset matches, in the selected empty physical page to write the logical page number for the data a step. In accordance with the present invention, there is an effect that it is possible to securely recover the system even in the large block can improve the performance of the flash memory sudden power interruption.