| 摘要 |
PURPOSE: A circuit for a voltage pump and a semiconductor memory device using the same are provided to secure the stable operation of a semiconductor memory chip by reducing unnecessary current consumption. CONSTITUTION: A pumping unit(150) comprises a plurality of pumps. A pumping controller(140) responds to every mode selection signal. The pumping controller determines the driving of each pump. A sequence generating unit(130) generates a driving signal of a multiple-bit. The sequence generating unit supplies at least one bit driving signal to the pumping unit. The pumping controller generates a pump off signal.
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