Volatile memory device and method for efficiently moving data in the volatile memory device

摘要

PROBLEM TO BE SOLVED: To provide a volatile memory device and a method for efficient bulk data movement and backup operation in the volatile memory device. A volatile memory device having a plurality of sub-arrays 150 configured to access data, each sub-array electrically coupled to each other, wherein row and column control is provided for each of the plurality of sub-arrays. Control the rows and columns of. The plurality of sense amplifiers SA periodically enable each of the plurality of sub-arrays during the data access operation. The plurality of sub-word drivers 151 are adjacent to the plurality of sub-arrays and provide driving signals to corresponding word lines. The volatile memory device performs a data movement operation within a predetermined block to determine odd and even data. The volatile memory device enables the first and second backup blocks in the dynamic memory array by column control, and backs up the odd and even data simultaneously to the first and second backup blocks. [Selection diagram] Figure 1