Multi-purpose non-volatile memory card

Usually, the function to operate the shoes which want to be chosen as the flash nonvolatile memory system which operates the memory cell by two or more memory State of the memory cell Brock, or all by the 2 State is prepared. Since these 2 State is chosen as what was left most distantly in two or more State, sufficient margin is prepared during operation of the 2 State. Thereby, programming can be accelerated and the life of the memory cell which is operating by the 2 State of operation increases. These advantages are offered when it is more desirable to offer the advantage here rather than the increase in the storage-of-data density obtained in multistate operation. An evincive enforcement form is a thing as a memory card in which a user can choose one side of 2 State operation and multistate operation.