Memory system and method of controlling nonvolatile memory
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United States of America Patent
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Jan 23, 2018
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Mar 9, 2016
filing date -
Sep 10, 2015
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Abstract
According to one embodiment, a controller searches a threshold voltage distribution of first memory cells corresponding to a first processing unit that is one processing unit among a plurality of processing units, and acquires a first read voltage. The controller calculates a second read voltage that is a read voltage for second memory cells corresponding to a second processing unit based on the acquired first read voltage and a first relation. The controller reads data from third memory cells included in the second memory cells by using the calculated second read voltage.
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