VOLATILE MEMORY DEVICE, MEMORY MODULE INCLUDING THE SAME, AND METHOD OF OPERATING MEMORY MODULE

摘要

A memory module includes an emergency power; a volatile memory device including a plurality of memory blocks; a nonvolatile memory device; and a module control block suitable for controlling data of the volatile memory device to be backed up to the nonvolatile memory device by using the emergency power when a power failure occurs, wherein data of the memory blocks are sequentially backed up to the nonvolatile memory device, and a refresh operation prohibited for a memory block of which back up is completed.

主权项

1. A volatile memory device comprising:
a plurality of memory blocks suitable for being refreshed in response to a plurality of refresh signals, respectively; a command decoder suitable for decoding a command to generate an internal refresh command; and a refresh circuit suitable for generating the refresh signals in response to the internal refresh command, wherein the refresh circuit prohibits a refresh signal corresponding to a memory block of which backup is completed from activating.