Memory device changing memory area in which data is stored and operating method thereof

A memory device, comprising:

• a memory cell array configured to include a plurality of memory areas;
• an input/output circuit configured to receive a command, an address, and data from an external controller;
• a page buffer group configured to include a plurality of page buffers respectively coupled to the plurality of memory areas through a plurality of bit lines;
• a row decoder configured to select a memory area, on which an operation corresponding to the command is to be performed, from among the plurality of memory areas according to a row address included in the address;
• a column decoder configured to transfer the data to a page buffer of the plurality of page buffers according to a column address included in the address;
• and
• an address controller configured to control the column decoder to store change data for changing the data in the page buffer of the plurality of page buffers in response to a data change command that is received from the external controller before the input/output circuit receives a confirm command instructing an initiation of the operation from the external controller.

A method of operating a memory device, the memory device including a plurality of memory areas and a plurality of page buffers respectively coupled to the plurality of memory areas through a plurality of bit lines, the method comprising:

• receiving a command, an address, and data from an external controller;
• selecting a memory area, on which an operation corresponding to the command is to be performed, from among the plurality of memory areas according to a row address included in the address;
• transferring the data to a page buffer of the plurality of page buffers according to a column address included in the address;
• receiving an address change command for instructing a change of the address;
• receiving a confirm command instructing an initiation of the operation from the external controller after the address change command is received;
• and
• storing the data in another memory area other than the selected memory area in response to the address change command and the confirm command.