| 摘要 |
A voltage generation section, which generates voltages for driving the control gates in a plurality of nonvolatile memory cells, has a booster circuit and a voltage control circuit. The voltage control circuit has a plurality of voltage output terminals, and switches and outputs a plurality of voltages inputted from the booster circuit to a plurality of voltage output terminals in accordance with a selection state of the nonvolatile memory cell. The voltage control circuit pre-drives a control gate line by outputting a maximum voltage among the voltages to all of the voltage output terminals in a pre-drive period. A disconnection state, in which no voltage from the booster circuit is outputted, is set in a period prior to the pre-drive period, and a power supply voltage may be outputted instead of the voltage from the booster circuit.
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