| 摘要 |
A data verify method for verifying data selectively on the basis of a written data value and a semiconductor memory device thereof are provided to verify data selectively, by enabling a page buffer selectively on the basis of the written data value. A semiconductor memory device comprises at least one memory cell and at least one page buffer(PB1-PBn). The page buffer corresponds to the memory cell, and verifies other bits of data written in a corresponding memory cell except partial bits coinciding with external data. The page buffer comprises a latch part(LU) and a comparison part(COMPU). The latch part latches the partial bits written in the corresponding memory cell. The comparison part compares the latched partial bits with the external data.
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