| 摘要 |
PROBLEM TO BE SOLVED: To lower current consumption of a boosting power source generation circuit for output while the boosting power source for output is supplied stably under the optimum electric charge capacity. SOLUTION: A VPPO generation circuit 132 which outputs a boosting power source VPPO to be utilized for the driving of a transistor for outputting H level data contained in an output buffer circuit 128 is made active by a VPPO control circuit 130 only during the operation of reading data. Only when necessary, the VPPD generation circuit 132 is operated thereby lowering power consumption in the circuit. |
