Memory, memory controller, memory system, method of memory, memory controller and memory system

摘要

In one embodiment, the method includes performing a read operation on a memory, and determining, by a memory controller, whether to perform a reliability verification read operation based on a count value and a reference value. The count value is based on a number of read commands issued by the memory controller to the memory, and the reliability verification read operation is for reading data from at least one memory cell associated with at least one unselected word line in the memory. An unselected word line is a word line not selected during the read operation. The method further includes performing the reliability verification read operation for the at least one unselected word line based on the determining.

主权项

1. A method of operating a memory controller, comprising:
performing a read operation on a memory; comparing, by the memory controller, a count value with a reference value, the count value being based on a number of read commands issued by the memory controller to the memory; performing a reliability verification read operation for at least one unselected word line of the memory to verify reliability of the memory when the count value reaches the reference value, the unselected word line being a word line not selected during the read operation; and performing a read reclaim according to a result of the reliability verification read operation.