| CPC G11C 11/40615 (2013.01) [G11C 11/40622 (2013.01); G11C 11/4085 (2013.01)] | 20 Claims |
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1. A method of operating a memory device, which includes a plurality of word lines and a register comprising N entries (N is an integer equal to or greater than 2), the method comprising:
storing address information and activation count information regarding N word lines from among the plurality of word lines in the register;
based on activation of a first word line different from the N word lines, evicting address information and activation count information regarding at least one of the N word lines from an entry among the N entries of the register, storing address information and activation count information regarding the first word line in the entry from which the address information and the activation count information have been evicted; and
generating first weakness information based on a number of evictions performed on the register during a first period.
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