| 摘要 |
The present invention relates to a circuit for clamping a word line voltage. The circuit comprises a reference voltage generating means for generating a reference voltage depending on first and second signals; a bootstrap circuit for generating a pumping voltage of a higher potential than a target voltage depending on the first and second signals to an output terminal; a control signal generating means for generating the first and second control signals depending on the first~third signals; a clamping control means for falling the pumping voltage depending the first and second control signals to generate a compare voltage; a comparator for comparing the reference voltage and the compare voltage to generate a third signal; and a discharging means for discharging the potential of the output terminal depending on the third signal to fall the pumping voltage to a target voltage.
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