发明授权
US08279672B2 Nonvolatile memory having plurality of memory blocks each including data storage area and discrimination area
有权
具有多个存储块的非易失性存储器，每个存储块包括数据存储区域和鉴别区域
- 专利标题： Nonvolatile memory having plurality of memory blocks each including data storage area and discrimination area
- 专利标题（中）： 具有多个存储块的非易失性存储器，每个存储块包括数据存储区域和鉴别区域
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申请号： US12656177申请日： 2010-01-20
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公开(公告)号： US08279672B2公开(公告)日： 2012-10-02
- 发明人: Kaori Oba
- 申请人： Kaori Oba
- 申请人地址： JP Kawasaki-Shi, Kanagawa
- 专利权人： Renesas Electronics Corporation
- 当前专利权人： Renesas Electronics Corporation
- 当前专利权人地址： JP Kawasaki-Shi, Kanagawa
- 代理机构： McGinn IP Law Group, PLLC
- 优先权： JP2009-010475 20090121
- 主分类号： G11C11/34
- IPC分类号： G11C11/34
摘要：
A nonvolatile memory includes memory blocks each including a data storage area for storing user data and a discrimination area that is provided so as to correspond to the each data storage area on a one-to-one basis and stores discriminative data indicating a writing state of data to the data storage area. The nonvolatile memory further includes a control circuit which determines the data storage area that will be a storage destination of the user data based on a relative difference relation among the discriminative data of the respective memory blocks, and changes the discriminative data of the discrimination area corresponding to the data storage area in which the user data was written to a value different from that before the writing.
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