METHOD OF OPERATING AND MANAGING UNRESTRICTED MEMORY IN A REWRITABLE NON-VOLATILE MEMORY, AND ASSOCIATED MEMORY

摘要

The present invention relates to the field of rewritable non-volatile memories. The invention relates more particularly to a rewritable non-volatile memory device comprising a plurality of erasable data sectors and a method of managing such a memory. The method comprises: an initialization step consisting in recording data of a first type in at least one part of the unrestricted sectors of the memory and in assigning a state E<SUB>PUB</SUB> to each of said sectors used; and a subsequent step of writing data of a second type into the memory consisting, if the unrestricted sectors of the memory exhibit a smaller space than a threshold value, in recording said data of the second type on a part of said sectors that are associated with a state E<SUB>PUB</SUB>, and in modifying the state of these sectors.