Storage device that backs up data to page buffer in low power mode and method for operating the same

Abstract

Storage devices and methods are disclosed. In an embodiment, a storage device may include a memory device including a plurality of memory units configured to store data and a plurality of page buffers coupled to the plurality of memory units, respectively, a volatile memory configured to store write data requested by a host, a power control device configured to control power supply to the memory device and the volatile memory and a processing circuit configured to control the memory device based on a command transmitted from the host. The processing circuit backs up the write data to a first page buffer among the plurality of page buffers in response to a low power mode entry command transmitted from the host. The power control device cuts off power supply to the volatile memory after the write data is backed up in the first page buffer.