Storage device for performing reliability check by using error correction code (ECC) data
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United States of America Patent
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Oct 24, 2023
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N/A
app pub date -
Sep 7, 2021
filing date -
Dec 30, 2020
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Abstract
A storage device for performing a reliability check by using error correction code (ECC) data is provided. The storage device includes a memory controller configured to detect the number of errors of second read data read out by a second read operation, based on ECC data of first read data read by a first read operation of a memory device. The memory controller includes a memory check circuit that includes a counter configured to count states of memory cells, a comparator configured to compare respective count numbers of the states with one another, and a register configured to store the number of errors based on a result of the comparison.
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