发明授权
EP1864289B1 USE OF DATA LATCHES IN CACHE OPERATIONS OF NON-VOLATILE MEMORIES
有权
锁存电路的数据使用AT缓存操作在非易失性STORE
- 专利标题: USE OF DATA LATCHES IN CACHE OPERATIONS OF NON-VOLATILE MEMORIES
- 专利标题(中): 锁存电路的数据使用AT缓存操作在非易失性STORE
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申请号: EP06739812.3申请日: 2006-03-27
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公开(公告)号: EP1864289B1公开(公告)日: 2010-02-17
- 发明人: LI, Yan , YERO, Emilio
- 申请人: SanDisk Corporation
- 申请人地址: 601 McCarthy Boulevard Milpitas, CA 95035 US
- 专利权人: SanDisk Corporation
- 当前专利权人: SanDisk Corporation
- 当前专利权人地址: 601 McCarthy Boulevard Milpitas, CA 95035 US
- 代理机构: Hitchcock, Esmond Antony
- 优先权: US97590 20050401
- 国际公布: WO2006107654 20061012
- 主分类号: G11C7/00
- IPC分类号: G11C7/00 ; G11C16/10
摘要:
Methods and circuitry are present for improving performance in non-volatile memory devices by allowing the inter-phase pipelining of operations with the same memory, allowing, for example, a read operation to be interleaved between the pulse and verify phases of a write operation. In the exemplary embodiment, the two operations share data latches. In specific examples, at the data latches needed for verification in a multi-level write operation free up, they can be used to store data read from another location during a read performed between steps in the multi-level write. In the exemplary embodiment, the multi-level write need only pause, execute the read, and resume the write at the point where it paused.
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