Importance

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Abstract

An example memory device includes a memory cell array, a page buffer including buffer units corresponding to a plurality of memory cells of a page, a control logic configured to control a first read operation such that first hard decision data based on a normal read level and first soft decision data based on an offset level with respect to a first page are stored in the page buffer. The control logic is configured to perform a control operation of outputting the first hard decision data to a memory controller after a second read operation with respect to a second page has started in response to a first command that requests read of the second page from the memory controller and outputting the first soft decision data to the memory controller while the second read operation is being performed in response to a second command from the memory controller.

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First Claim