| 摘要 |
Provided are a memory system having an improved operating speed and an operating method thereof. The operating method of the memory system according to the embodiment of the present invention includes the steps of: storing a first map table including a mapping relationship between first physical address numbers, which indicates at least a portion of pages of memory blocks having multi-level cells and first logical address numbers; storing logical address groups having the first logical address numbers as meta information; receiving a request address number from a host; determining a logical address group having the request address number; and detecting whether or not the determined logical address group exists in the logical address groups of the meta information, and searching for the request address number in the first map table according to the detection result. |
