| 摘要 |
A semiconductor integrated circuit device capable of lengthening a life of a FeRAM. A RAM stores the same data as those of the FeRAM in the same address as that of the FeRAM. An FF (flip-flop) section stores validity of the data at each address on the RAM. When data at a specified address are valid with reference to the FF section at the time of data reading, a data access controller allows data reading from the RAM in place of the FeRAM.
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