| 摘要 |
A semiconductor memory device includes an amplifying unit for amplifying a voltage difference between a bit line pair; a power supply driver for supplying a power to the amplifying unit in response to a second driving signal; a control unit for generating a first driving signal of the power supply driver in response to an amplifying unit enable signal; a selection signal generation unit for generating a plurality of selection signals for determining a turning-on transition speed of the power supply driver; and a power supply driver driving unit for generating the second driving signal according to the first driving signal and the plurality of selection signals.
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