| 摘要 |
A semiconductor memory device comprises a first core section including a plurality of memory cell arrays, a second core section including a plurality of memory cell arrays and provided below the first core section, a third core section including a plurality of memory cell arrays and provided in a right side of the first core section, and a fourth core section including a plurality of memory cell arrays and provided in a right side of the second core section, wherein at least a part of the memory cell arrays of the first core section and at least a part of the memory cell arrays of the fourth core section are simultaneously activated, and at least a part of the memory cell arrays of the second core section and at least a part of the memory cell arrays of the third core section are simultaneously activated.
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