NON-VOLATILE LATCH CIRCUIT AND LOGIC CIRCUIT USING THE SAME

摘要

A non-volatile latch circuit comprises a latch circuit (11), first and second magnetoresistive elements (13-1, 13-2), and a current supply section (12). The latch circuit (11) temporarily holds data. The first and second magnetoresistive elements (13-1, 13-2) each include first and second magnetic layers stacked with an insulating film in between. The current supply section (12) changes the magnetization states of the first and second magnetoresistive elements (13-1, 13-2) in a complementary manner, depending on the state of the latch circuit (11). The first magnetic layers of the respective first and second magnetoresistive elements (13-1, 13-2) are connected in series. The latch circuit (11) has a function with which the latch circuit (11) holds data corresponding to a magnetization state.