| 摘要 |
A semiconductor memory device includes a plurality of first fuse latch circuits configured to provide redundancy to first addresses, a plurality of second fuse latch circuits configured to provide redundancy to second addresses, and a nullifying circuit configured to make the plurality of second fuse latch circuits ineffective, wherein first fuse positions corresponding to the plurality of first fuse latch circuits intervene between second fuse positions corresponding to the plurality of second fuse latch circuits.
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