Data storage device, memory system, and computing system using nonvolatile memory device
AssigneeSamsung Electronics Co., Ltd.
InventorsKyung-Wook Ye, Yul-Won Cho
Life of this patent
Estimating the term…
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.
Claims9
A data storage device comprising:
- a first data storage area configured to store at least one bit of data per cell in a nonvolatile memory cell array;
- wherein the first data storage area comprises a plurality of memory blocks selected in a predetermined order and configured to store user data and metadata corresponding to the user data;
- wherein the user data and the metadata are written in the same memory block while it is the currently-selected memory block, and wherein meta-management data for management of the metadata are written in the currently-selected memory block;
- and
- wherein the meta-management data includes exact-location information of the metadata.
Dependencies are inferred from the claim text.