公开(公告)号：US20040218439A1

公开(公告)日：2004-11-04

申请号：US10766291

申请日：2004-01-26

Applicant: STMicroelectronics S.A.

Inventor： Michel Harrand ,  Joseph Bulone

IPC: G11C007/00

CPC classification number: G11C11/40615 ,  G11C11/406 ,  G11C2211/4061

Abstract: The content of a few pages of the dynamic random access memory is backed up, then one tries to refresh them less quickly, for example two times less quickly, and one observes whether this does or does not cause errors. The operation is repeated on the entire memory. Depending on the number of errors that have appeared on the pages refreshed less often, the refresh period is decreased or increased. Thus, the memory self-adjusts its refresh period to what is necessary for it.

Abstract translation: 对动态随机存取存储器的几页内容进行备份，然后尝试快速刷新它们，例如快速刷新两次，一次观察是否会导致错误。 在整个存储器上重复操作。 根据刷新页面上出现的错误次数不同，刷新周期减少或增加。 因此，内存将自己的刷新周期自动调整到需要的时间。