| 摘要 |
PURPOSE: An internal voltage generating circuit of a semiconductor device is provided to prevent the operational deterioration of an internal voltage generating circuit by stably generating an internal voltage. CONSTITUTION: A first internal voltage generating unit(210) generates an internal voltage having a constant voltage level by receiving a first reference voltage with the constant level with regard to a first external power voltage if the level of the first external power voltage is high by sensing the level of the first external power voltage. A second internal voltage generating unit(220) is connected to the output terminal of the first internal voltage generating unit. The second internal voltage generating unit generates an internal voltage with the constant voltage level by receiving a control voltage with a higher level than the level of the first external power voltage if the first external power voltage is low. |
