| 摘要 |
A ferroelectric storage apparatus which can prevent disturbance, a driving method therefor, and a driving circuit therefor are provided. In the ferroelectric storage apparatus, an operation step of applying one of data reading, data re-writing, and data writing to at least one selected cell 18a among a plurality of ferroelectric memory cells 18 formed at the intersections of a plurality of word lines 14 and a plurality of bit lines 16 is repeatedly performed. A disturbance prevention step of applying a voltage to each of the plurality of ferroelectric memory cells 18 in an electric-field direction in which the stored data of each ferroelectric memory cell 18 is not inverted is performed after the operation step is executed at least once. With this, a voltage is applied to not-selected cells 18b at a certain frequency in an electric-field direction in which the stored data of the not-selected cells is not inverted, and data deterioration is suppressed. <IMAGE> |
