NONVOLATILE MEMORY DEVICE AND METHOD FOR MANAGING DATA THEREOF

摘要

According to the present invention, provided are a non-volatile memory device in which an erasing operation due to read migration is reduced and a data management method thereof. The data management method of the non-volatile memory device according to the present invention comprises the steps of receiving a read command for a first block; determining attributes of at least one logic page among logic pages included in the first block, in accordance with a block read count representing the number of readings of the first block; programming at least one logic page selectively to a second block according to the determined attributes; and updating a mapping table which indicates a physical address corresponding to at least one logic page after programming.