摘要:
Provided is a multi-voltage generator for a flash memory device including a high voltage pumping unit configured to generate a high voltage in response to an enable signal, voltage regulators, each regulator coupled to the high voltage and a control voltage and configured to generate a pumping signal, and a selector configured to select one of the pumping signals as the enable signal.
摘要:
The method for programming a flash memory device includes sequentially loading program data in the page buffer circuit responsive to a first command signal, the first command signal indicating program data input and generating a program voltage responsive to a second command signal, the second command signal indicating programming initiation. EEPROM cells are programmed after the program voltage reaches a predetermined target. All of the programmed EEPROM cells are verified to ensure that they are properly programmed. If the EEPROM cells are not properly programmed, programming is repeated until all of the EEPROM cells are properly programmed. The program voltage is increased in a stepwise manner every time programming is repeated.