发明名称 |
MEMORY SYSTEM AND CONTROL METHOD THEREOF |
摘要 |
A memory system includes a cell array including a plurality of nonvolatile memory cells electrically connected to a common word line, each memory cell storing a plurality of bits including a plurality of potential ranks, and a controller measuring a potential of the memory cell for each potential rank and changing a lower limit and upper limit of the potential rank based on the measurement result.
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申请公布号 |
US2010254187(A1) |
申请公布日期 |
2010.10.07 |
申请号 |
US20090644685 |
申请日期 |
2009.12.22 |
申请人 |
TANAKA HIROAKI;MURAKAMI TETSUYA |
发明人 |
TANAKA HIROAKI;MURAKAMI TETSUYA |
分类号 |
G11C16/04 |
主分类号 |
G11C16/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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