Non-destructive mode cache programming in NAND flash memory devices
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机译:NAND闪存设备中的非破坏性模式缓存编程
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摘要
A method of cache programming of a NAND flash memory in a triple-level-cell (TLC) mode is provided. The method includes discarding an upper page of a first programming data from a first set of data latches in a plurality of page buffers when a first group of logic states are programmed and verified. The plurality of page buffers include the first, second and third sets of data latches, configured to store the upper page, middle page and lower page of programming data, respectively. The method also includes uploading a lower page of second programming data to a set of cache latches, transferring the lower page of the second programming data from the set of cache latches to the third set of data latches after discarding the lower page of the first programming data, and uploading a middle page of the second programming data to the set of cache latches.
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