公开(公告)号：US07200062B2

公开(公告)日：2007-04-03

申请号：US10931564

申请日：2004-08-31

申请人： Thomas H. Kinsely ,  Jeffery W. Janzen

发明人： Thomas H. Kinsely ,  Jeffery W. Janzen

IPC分类号： G11C7/00

CPC分类号： G11C11/40611 ,  G11C11/406 ,  G11C11/40615 ,  G11C11/40618 ,  G11C11/40622

摘要： A dynamic random access memory device includes a mode register that is programmed with a delay value. In some embodiments, a offset code is also stored in the memory device. The memory device uses the delay value, which may be added to or multiplied by the offset code, to delay the initiation of a received auto-refresh or self-refresh command. A large number of dynamic random access memory devices in a system may be provided with different delay values and possibly offset codes so that the memory device do not all perform refreshes simultaneously in response to an auto-refresh or self-refresh command issued to all of the memory devices simultaneously. As a result, the peak current drawn by the memory devices resulting from the auto-refresh command or self-refresh command is maintained at a relatively low value.

摘要翻译： 动态随机存取存储器件包括用延迟值编程的模式寄存器。 在一些实施例中，偏移代码也存储在存储器件中。 存储器件使用延迟值，该延迟值可以被添加到偏移代码或乘以偏移代码，以延迟接收的自动刷新或自刷新命令的启动。 可以为系统中的大量动态随机存取存储器件提供不同的延迟值和可能的偏移代码，使得存储器件不是都响应于自动刷新或自刷新命令而同时执行刷新 同时存储设备。 结果，由自动刷新命令或自刷新命令产生的存储器件所绘制的峰值电流保持在较低的值。