| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a voltage generator for a flash memory device in which low voltage detection and regulation can be performed accurately without being affected by the change of a process or power source voltage. <P>SOLUTION: This device comprises a flash memory cell being over-erased, a flash memory cell programmed at least by one or more, and comparators of at least one or more for comparing respectively a cell current of a the flash memory cell being over-erased and a cell current of the programmed flash memory cell, low voltage is detected by an output of the comparator, and operation of charge pump circuits of at least one or more are controlled. <P>COPYRIGHT: (C)2004,JPO</p> |
