| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor storage device for suppressing peak current generated when each memory in the semiconductor memory simultaneously executes parallel operation. SOLUTION: In the semiconductor storage device including a plurality of memory devices 1a(1b), the plurality of the memory devices are divided into first and second groups each operated in parallel during data reading. Timings activating sense amplifiers belonging to the divided first and second groups are differentiated respectively. Thus, the maximum value of peak current generated when the sense amplifiers are activated during data reading is halved in the whole semiconductor storage device. Data reading operation can be stably executed by suppressing the peak current. COPYRIGHT: (C)2004,JPO&NCIPI
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