Multi-chip semiconductor devices having non-volatile memory devices therein

摘要

A flash memory device and a flash memory system are disclosed. The flash memory device includes a first non-volatile memory including a plurality of page data cells, storing page data, and reading and outputting the stored page data when a read command is applied from an external portion; and a second non-volatile memory including a plurality of spare data cells respectively adjacent to the plurality of page data cells, storing spare data, scanning the spare data and temporarily storing corresponding information when a file system is mounted, reading and outputting the stored spare data when the read command is applied.