Nonvolatile memory device, operating method of nonvolatile memory device, and memory system including nonvolatile memory device

Abstract

A memory device may include a memory cell array, and a write driver and sense amplifier connected to the memory cell array through bit lines. The memory cell array includes a first cell area including a plurality of first memory cells arranged on a plane corresponding to a first direction and a second direction, a second cell area including a plurality of second memory cells arranged on the plane disposed on one side of the first cell area in the first direction, a word line extending in the first direction and is connected to the plurality of first memory cells and the plurality of second memory cells, first bit lines extending in the second direction and are respectively connected to the plurality of first memory cells, and second bit lines extending in the second direction and are respectively connected to the plurality of second memory cells.