| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor memory apparatus in which power consumption can be reduced. SOLUTION: The semiconductor memory apparatus 1 is provided with a plurality of memory cells 11 connected respectively to a plurality of word lines WL, and a refresh circuit 40. The refresh circuit 40 refreshes each of the plurality of memory cells 11 with some timer period by driving successively the plurality of word lines WL. When a mode is shifted to a standby mode from an active mode, the refresh circuit 40 sets variably a timer period for each of the plurality of memory cells 11 in accordance with disturbance quantity during the active mode period. COPYRIGHT: (C)2006,JPO&NCIPI
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