| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that it is hard to arrange circuit blocks unnecessary to all pairs of bit lines without affecting the arrangement of bit lines. SOLUTION: A sense amplifier driver NSAD constituted of (n) channel transistors is arranged between a local data transfer gate LDQG and a sense amplifier NSA. A sense amplifier driver PSAD constituted of (p) channel transistors is arranged between a local data transfer gate LDQG and a sense amplifier PSA. The sense amplifier drivers NSAD and PSAD are arranged with a pitch larger than the pitch of bit lines. Therefore, the pitch of layout of sense amplifier drivers NSAD and PSAD and the local data transfer gate LDQG can be relaxed, and a design rule can be relaxed.
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