| 摘要 |
PROBLEM TO BE SOLVED: To provide a virtual static random access memory device having a function for refreshing data of a memory cell by using a dynamic memory cell and its driving method. SOLUTION: This device is provided with a memory cell array 34, an input/ output driving section 20 performing input/output of data, register sections 26, 28 storing the prescribed internal data, a refresh control section 32 controlling refresh operation, and a state control section 30 in which when recording operation for the memory cell array is executed for a longer time than a refresh period and the prescribed time elapses from start of recording operation, refresh operation for a memory cell array can be executed by the refresh control section after input data from the outside can be stored by the register section, after that additional recording operation for the memory cell array can be executed using input data stored in the register section by the input/output driving section.
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