Control device for nonvolatile memory and method of operating control device
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United States of America Patent
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May 21, 2013
Grant Date -
Jun 30, 2011
app pub date -
Oct 28, 2010
filing date -
Dec 24, 2009
priority date (Note) -
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Abstract
A device comprises a nonvolatile memory cell array, a buffer circuit, a program control circuit, and a read control circuit. The nonvolatile memory cell array comprises a plurality of memory cells. The program control circuit stores program data in the buffer circuit. The read control circuit reads data from a selected address of the nonvolatile memory cell array. The program control circuit compares the program data with the read data, and sets a bit of the program data as a program-inhibit bit based on the comparison.
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