| 摘要 |
To provide a first power supply wiring that supplies a lower-side write potential to a sense amplifier, a second power supply wiring that supplies a higher-side write potential to the sense amplifier, a third power supply wiring that supplies an overdrive potential to the sense amplifier, and a stabilizing capacitance arranged between the first power supply wiring and the third power supply wiring. With this configuration, a capacitance value applied to the lower-side write potential and a capacitance value applied to the overdrive potential inevitably match, and thus fluctuation of the lower-side write potential and fluctuation of the overdrive potential at an initial stage of a sense operation are offset.
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