DATA OUTPUT BUFFER CIRCUIT OF SEMICONDUCTOR MEMORY DEVICE

摘要

PURPOSE: A data input circuit of a semiconductor memory device is provided to guarantee the safe reading action. CONSTITUTION: The data output buffer circuit comprises: an output terminal for outputting data; a piece having a couple of pumping capacitors, for generating the pull-up signal having the voltage level higher than the inner power voltage level; a piece for generating the pull-down signal by responding to the data signal when the data output buffer control signal is activated; a piece for generating the pulse signal having a specific width; a piece for driving the output terminal by responding to the pull-up and the pull-down signals; and pre-charge circuits for respectively pre-charging the terminals of the pumping capacitors to the inner power voltage level.