Read-write data storage device and page table method is not available or unavailable block table

The present invention provides a data storage device types, includes a host interface, a master chip for storing data and one or a plurality of NAND an MRAM chips, NAND chip, the master chip connecting respectively an MRAM, an MRAM including write cache or write buffer, MRAM further comprises erase count table and the page table is not available, the number of erase times table for NAND memory chip erase of each block, comprising a page table page is not available at the time of bad blocks in the NAND chips shipped, a subsequent read page write bad blocks appear in the course and their replacement sheet. The present invention provides a data storage device and is unavailable to the page table / write method is not available block table flows, MRAM including write cache or write buffer, to ensure that both read and write performance, and reduce the number of erased NAND, extended data storage means life; maintain erase counts for each block table and the page table is not available / unavailable block table, not using remote management techniques NAND written, without having to save the logical addresses and physical addresses occupied table large amount of space, not only saves storage space, without the need for complex processing, progress to improve the reading and writing performance.