| 摘要 |
PURPOSE: A semiconductor memory device and its refreshing method are provided to improve the operation stability of the semiconductor memory device by distributing a peak current which is consumed in a refresh operation. CONSTITUTION: A refresh address generation part(410) generates a block address(X12~X9) and a word line address(X6~X3). The cell block address successively selects a plurality of memory cell blocks(420). The word line address selects the word line(WL) of the selected memory cell block(MAT). The memory cell block refresh the memory cell data of the word line in the cell block address and cell block. The memory cell block is comprised of an open bit line structure. |
