MEMORY DEVICE CAPABLE OF REDUCING THE ISSUE TIMES OF THE REFRESH COMMANDS, AN OPERATION METHOD THEREOF, AND AN APPARATUS WHICH COMPRISES THE MEMORY DEVICE

摘要

PURPOSE: A memory device, an operation method thereof, and an apparatus which comprises the memory device are provided to perform a refresh operation for a plurality of low per bank, thereby increasing the average time between the refresh commands.;CONSTITUTION: In response to a mode register writing command, one of a plurality of bank is masked (S10). In response to a first per bank refresh command, a refresh operation is performed for a plurality of row which is included in one of the bank that is not masked (S20).;COPYRIGHT KIPO 2013;[Reference numerals] (S10) Mask at least one out of multiple banks in response to a mode register writing order; (S20) Refresh the multiple rows included by the banks not being masked in response to a first bank refresh order