Apparatus and method for improving consistency of performance in a memory device
AssigneeSK hynix Inc.
InventorByeong Su KANG
Life of this patent
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Abstract
A memory system includes a memory device and a controller. The memory device is configured to access a plurality of memory cells through at least one of a plurality of word lines. The controller is configured to collect information regarding operating performance of each of at least some word lines among the plurality of word lines in the memory device, to group the at least some word lines into a plurality of groups based on a reference associated with the information, and to assign a data input/output operation to one of the plurality of groups to perform the data input/output operation.
Claims20
A memory system, comprising:
- a memory device configured to access a plurality of memory cells through at least one of a plurality of word lines;
- and
- a controller configured to collect information regarding operating performance of each of at least some word lines among the plurality of word lines in the memory device, to group the at least some word lines into a plurality of groups based on a reference associated with the information, and to assign a data input/output operation to one of the plurality of groups to perform the data input/output operation.
A method of operating a memory system, comprising:
- collecting information regarding operating performance of each of at least some word lines among a plurality of word lines in a memory device;
- grouping the at least some word lines into a plurality of groups based on a reference associated with the information, and
- assigning a data input/output operation to one of the plurality of groups to perform the data input/output operation.
A memory device comprising:
- a plurality of memory cells;
- a plurality of word lines for accessing the plurality of memory cells;
- and
- a row decoder configured to receive at least one write command and a plurality of physical addresses, transmitted from a memory controller, and to select a plurality of word lines among the plurality of word lines based on the plurality of physical addresses,
- wherein at least some of the selected word lines are not sequential with other selected word lines.
Dependencies are inferred from the claim text.