Nonvolatile memory device, operating method thereof, and data storage device including the same
AssigneeSK hynix Inc.
InventorTae Hoon KIM
Life of this patent
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Abstract
A nonvolatile memory device includes a memory cell array including a data cell area, and a mode cell area that stores write mode information of the data cell area, a mode information storage block storing previous write mode information read out from the mode cell area in a previous read operation, and a control logic reading out the write mode information from the mode cell area comparing the read-out write mode information and the previous write mode information, and reading the data cell area in a read mode selected based on a comparison result.
Claims19
A nonvolatile memory device comprising:
- a memory cell array including a data cell area;
- a mode cell area that stores write mode information of the data cell area;
- a mode information storage block suitable for storing previous write mode information read out from the mode cell area in a previous read operation;
- and
- a control logic suitable for reading out the write mode information from the mode cell area, comparing the read-out write mode information and the previous write mode information, and reading the data cell area in a read mode selected based on a comparison result.
An operating method of a nonvolatile memory device, comprising:
- reading out write mode information stored in a mode cell area;
- determining whether the read-out write mode information and previous write mode information stored in a mode information storage block are the same;
- and
- performing a read operation in a read mode selected based on a comparison result.
A data storage device comprising:
- a memory controller suitable for providing a write command;
- and
- a nonvolatile memory device including a memory cell array which includes a data cell area and a mode cell area and a mode information storage block, and suitable for selecting a write mode based on the write command provided from the memory controller, storing data in the data cell area in the selected write mode, and storing write mode information on the selected write mode in the mode cell area.
Dependencies are inferred from the claim text.