Invention Grant
US08819358B2 Data storage device, memory system, and computing system using nonvolatile memory device 有权
数据存储设备,存储系统和使用非易失性存储器件的计算系统

Data storage device, memory system, and computing system using nonvolatile memory device
Abstract:
Provided is a data storage device including two or more data storage areas including may have two or more (heterogeneous) types of nonvolatile memory cells. At least one of the data storage areas includes a plurality of memory blocks that are sequentially selected, and metadata are stored in the currently selected memory block. The memory blocks can be sequentially used and metadata can be stored in a uniformly-distributed manner throughout the data storage device. Therefore, separate merging and wear-leveling operations are unnecessary. Thus, it is possible to improve the lifetime and writing performance of a data storage device having two or more heterogeneous nonvolatile memories.
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