公开(公告)号：US20130227203A1

公开(公告)日：2013-08-29

申请号：US13846638

申请日：2013-03-18

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Giulio Marotta ,  Luca De Santis ,  Tommaso Vali

IPC: G06F12/02

CPC classification number: G11C16/16 ,  G06F12/0246 ,  G06F2212/7202 ,  G11C2211/5641

Abstract: Apparatus and methods are disclosed, such as those that provide dynamic block allocations in NAND flash memory between single-level cells (SLC) and multi-level cells (MLC) based on characteristics. In one embodiment, a memory controller dynamically switches between programming and/or reprogramming blocks between SLC mode and MLC mode based on the amount of memory available for use. When memory usage is low, SLC mode is used. When memory usage is high, MLC mode is used. Dynamic block allocation allows a memory controller to obtain the performance and reliability benefits of SLC mode while retaining the space saving benefits of MLC mode.

Abstract translation: 公开了装置和方法，例如基于特性在单级单元（SLC）和多级单元（MLC）之间的NAND闪速存储器中提供动态块分配的装置和方法。 在一个实施例中，存储器控制器基于可用于使用的存储器的量，在SLC模式和MLC模式之间的编程和/或重新编程块之间动态切换。 当内存使用量低时，使用SLC模式。 当内存使用率高时，使用MLC模式。 动态块分配允许内存控制器获得SLC模式的性能和可靠性优势，同时保持MLC模式的节省空间的优势。

公开(公告)号：US08667215B2

公开(公告)日：2014-03-04

申请号：US13846638

申请日：2013-03-18

Applicant: Micron Technology, Inc.

Inventor： Giulio Marotta ,  Luca De Santis ,  Tommaso Vali

IPC: G06F12/00

CPC classification number: G11C16/16 ,  G06F12/0246 ,  G06F2212/7202 ,  G11C2211/5641

Abstract: Apparatus and methods are disclosed, such as those that provide dynamic block allocations in NAND flash memory between single-level cells (SLC) and multi-level cells (MLC) based on characteristics. In one embodiment, a memory controller dynamically switches between programming and/or reprogramming blocks between SLC mode and MLC mode based on the amount of memory available for use. When memory usage is low, SLC mode is used. When memory usage is high, MLC mode is used. Dynamic block allocation allows a memory controller to obtain the performance and reliability benefits of SLC mode while retaining the space saving benefits of MLC mode.

Abstract translation: 公开了装置和方法，例如基于特性在单级单元（SLC）和多级单元（MLC）之间的NAND闪速存储器中提供动态块分配的装置和方法。 在一个实施例中，存储器控制器基于可用于使用的存储器的量，在SLC模式和MLC模式之间的编程和/或重新编程块之间动态切换。 当内存使用量低时，使用SLC模式。 当内存使用率高时，使用MLC模式。 动态块分配允许内存控制器获得SLC模式的性能和可靠性优势，同时保持MLC模式的节省空间的优势。

公开(公告)号：US20140133226A1

公开(公告)日：2014-05-15

申请号：US14159041

申请日：2014-01-20

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Giulio Marotta ,  Luca De Santis ,  Tommaso Vali

IPC: G11C16/16

CPC classification number: G11C16/16 ,  G06F12/0246 ,  G06F2212/7202 ,  G11C2211/5641

Abstract: Apparatus and methods are disclosed, such as those that provide dynamic block allocations in NAND flash memory between single-level cells (SLC) and multi-level cells (MLC) based on characteristics. In one embodiment, a memory controller dynamically switches between programming and/or reprogramming blocks between SLC mode and MLC mode based on the amount of memory available for use. When memory usage is low, SLC mode is used. When memory usage is high, MLC mode is used. Dynamic block allocation allows a memory controller to obtain the performance and reliability benefits of SLC mode while retaining the space saving benefits of MLC mode.

Abstract translation: 公开了装置和方法，例如基于特性在单级单元（SLC）和多级单元（MLC）之间的NAND闪速存储器中提供动态块分配的装置和方法。 在一个实施例中，存储器控制器基于可用于使用的存储器的量，在SLC模式和MLC模式之间的编程和/或重新编程块之间动态切换。 当内存使用量低时，使用SLC模式。 当内存使用率高时，使用MLC模式。 动态块分配允许内存控制器获得SLC模式的性能和可靠性优势，同时保持MLC模式的节省空间的优势。