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Semiconductor device including boosted voltage supply circuit for supplying boosted voltage to memory array
Semiconductor device including boosted voltage supply circuit for supplying boosted voltage to memory array
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机译:包括用于将升压电压提供给存储器阵列的升压电压供应电路的半导体器件
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摘要
To maintain constant an output voltage of a boosted voltage circuit even when a program current of a nonvolatile memory increases; in a boosted voltage circuit provided in a semiconductor device, an output voltage of a charge pump is detected by a voltage dividing circuit, and on-off control is performed on an oscillation circuit for driving the charge pump so that the detected output voltage becomes constant. Further, an output current of the charge pump is detected, and a control current according to a magnitude of the detected output current is generated. The control current is fed into or drawn from a coupling node between a plurality of series-coupled resistance elements configuring the voltage dividing circuit.
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