Memory system and operation method of the same

The memory system, normally the MSB (Most Significant Bit) and (Least Significant Bit) LSB stored in the memory cells to be accessed, such areas, the hot zone where the MSB stored in the memory cells accessed, and a cold region where LSB is accessed stored in the memory cells non-volatile memory, including; And a memory controller for controlling the nonvolatile memory, the memory controller will lead to count the number of times of read and write operation for the multiple logical cluster / write counter; The read / write by using the counting result of the counter wherein the plurality of logical cluster normal region, the hot zone and the zone selector for mapping in one area of ​​the cold zone; And it may include a cluster mapping table for storing the mapping information mapped by the region selector.