公开(公告)号：US20130238839A1

公开(公告)日：2013-09-12

申请号：US13649292

申请日：2012-10-11

申请人： Hanan Weingerten ,  Shmuel Levy ,  Michael Katz

发明人： Hanan Weingerten ,  Shmuel Levy ,  Michael Katz

IPC分类号： G06F12/02

CPC分类号： G06F12/0246 ,  G06F2212/1032 ,  G11C16/349

摘要： A flash memory apparatus that may include a plurality of memory portions, and a controller operative to reserve for data retention purposes, for at least a first duration of time, only certain memory portions; allocate data, during said first duration of time, only to said certain memory portions, thereby to define a retired memory portion for said first duration of time; determine to copy data from a certain memory portion to a retired memory portion based upon a relationship between effective cycle counts of the certain memory portion and the retired memory portion, an effective cycle count of any memory portion is responsive to a number of erase-write cycles and to an effective duration of time the memory portion had available to recover from erase-write cycles; and copy the data from the certain memory portion to the retired memory portion.

摘要翻译： 一种闪存设备，其可以包括多个存储器部分，以及控制器，其操作以保留数据保留目的，至少在第一持续时间内只有特定的存储器部分; 在所述第一持续时间期间将数据分配给所述特定存储器部分，从而定义所述第一持续时间的退休存储器部分; 基于特定存储器部分和退出的存储器部分的有效周期计数之间的关系确定将数据从特定存储器部分复制到退休存储器部分，任何存储器部分的有效周期计数响应于擦除写入次数 周期和存储器部分可用于从擦除 - 写入周期恢复的有效持续时间; 并将数据从特定存储器部分复制到退出的存储器部分。