Flash memory device having a verify data buffer capable of being employed as a program data buffer, and a method thereof

摘要

A flash memory device includes a program data buffer configured to buffer program data to be programmed in a memory cell array, and a verify data buffer configured to compare verify data to confirm whether the program data is accurately programmed in the memory cell array, wherein at least a portion of the verify data buffer is selectively enabled as a verify data buffer or a program data buffer responsive to a buffer control signal.