Memory system

Details Memory system Memory system

G - Physics

11

C

352/41, 352/82.2

G11C 11/24 (2006.01) G11C 5/14 (2006.01) G11C 11/40 (2006.01) G11C 11/406 (2006.01) G11C 11/4072 (2006.01) G11C 11/4074 (2006.01)

Patent

CA 1222050

- 1 - Abstract: A semiconductor memory including a dynamic memory device has a battery for supplying a voltage source for power and a substrate bias voltage when the memory is cut off from an external supply. A refresh control circuit changes the refresh timing of the memory device in accordance with the leakage current of the memory device. The power consumption of the memory can thus be reduced and the data kept for an extended period without an external source of power.

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