Memory system for reliable predicted sequential read operation

摘要

A memory system includes a plurality of memory chips each including memory regions and page buffers; an address table suitable for storing mapping information for mapping physical addresses and logical addresses; a target table suitable for storing sequential physical addresses and sequential logical addresses; a selective output block suitable for selecting the memory regions as pages under selection by units of a page according to a preset order, based on the sequential physical addresses, and outputting data stored in page buffers of memory chips under selection corresponding to the pages under selection; and an expected read block suitable for reading data stored in selection-expected pages, which is to be selected following the pages under selection according to the preset order, to store in page buffers of selection-expected memory chips corresponding to the selection-expected pages, while the data stored in the page buffers under selection are outputted.

主权项

1. A memory system comprising:
a plurality of memory chips each including memory regions and page buffers; an address table suitable for storing mapping information for mapping physical addresses for identifying the memory regions of the plurality of respective memory chips by unit of a physical page and logical addresses for identifying the memory regions of the plurality of respective memory chips by the unit of a logical page; a target table suitable for storing sequential physical addresses that are converted from sequential logical addresses through the address table; a selective output block suitable for selecting the memory regions of the memory chips as pages under selection by units of a page according to a preset order, based on the sequential physical addresses, and outputting data stored in page buffers of memory chips under selection corresponding to the pages under selection, among the memory chips; and an expected read block suitable for reading data stored in selection-expected pages, which is to be selected following the pages under selection according to the preset order in the selective output block, to store in page buffers of selection-expected memory chips corresponding to the selection-expected pages, among the memory chips, while the data stored in the page buffers of the memory chips under selection are outputted.