| 摘要 |
PURPOSE: An internal voltage generation circuit is provided to set various dead zones without changing a design by including a plurality of driving units. CONSTITUTION: In an internal voltage generation circuit, a voltage divider(2) divides an external voltage. The voltage divider generates first and second upper limit voltages and first and second lowest voltages. An enable signal generation unit(3) decodes a test mode signal. The enable signal generation unit generates first and second enable signals. A first comparator(40) compares an internal voltage with a first upper limit voltage and a first lowest limit voltage. The first comparator generates a first pull-up signal and a first pull down signal. A second comparator(41) compares an internal voltage with a second upper limit voltage and a second lowest limit voltage. The second comparator generates a second pull-up signal and a second pull down signal. |
