Importance

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Abstract

A semiconductor device includes: a nonvolatile memory cell including first memory cells and second memory cells; a bit latch; and a saved register. In a first writing operation, first writing data are stored in the bit latch and the saved register, and writing to the first memory cells is executed based on the first writing data. During the first writing operation, the first writing operation is interrupted based on a suspension command, and a second writing operation is executed. In the second writing operation, second writing data are stored in the bit latch, and writing to the second memory cells is executed based on the second writing data. After the second writing operation is ended, the first writing data is reset to the bit latch based on a resume command, and the interrupted first writing operation is restarted based on the first writing data reset to the bit latch.

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First Claim