| 摘要 |
PURPOSE: A high voltage control circuit of a semiconductor device is provided to efficiently generate a pumping voltage by pumping high voltage using an external voltage with a higher level than a voltage generally used in a semiconductor device. CONSTITUTION: A pumping circuit(50) pumps a high voltage using a second external power voltage. A second external power voltage is higher than a first external power voltage generally used in a semiconductor device. A detection part(30) detects the level of the second external power voltage. A pumping circuit controls a pumping operation when the second external power voltage reaches to a specified level. A high voltage detection part uses the first external power voltage as a power supply voltage.
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