Patent ID: 7464131

Claim:
A logical calculation circuit comprising: a storage ferroelectric capacitor for retaining a polarized state corresponding to a first data to be calculated and having a first and a second terminals; a load ferroelectric capacitor for retaining a polarized state in substantially complementary relationship to the polarized state of the storage ferroelectric capacitor, having a third terminal connected to the first terminal of the storage ferroelectric capacitor, and a fourth terminal; and a calculation result output section connected to a coupling node between the first terminal of the storage ferroelectric capacitor and the third terminal of the load ferroelectric capacitor to output a logical calculation result of the first data to be calculated and a second data to be calculated for a specified logical operator based on the potential of the coupling node obtained by connecting the fourth terminal of the load ferroelectric capacitor to a specified reference potential while giving the second data to be calculated to the second terminal of the storage ferroelectric capacitor.