Patent ID: 8243502

Claim:
A nonvolatile latch circuit comprising: a latch circuit configured to temporarily hold data; a first magnetoresistance element and a second magnetoresistance element, each configured to include a first magnetic layer and a second magnetic layer that are stacked with an insulating film sandwiched therebetween; and a current supply portion configured to complementarily changes magnetization states of said first magnetoresistance element and said second magnetoresistance element based on a state of said latch circuit, wherein said first magnetic layer of said first magnetoresistance element and said first magnetic layer of said second magnetoresistance element are series-connected to each other in, wherein said latch circuit has a function that brings data corresponding to said magnetization states to data held by said latch circuit, and wherein a terminal on said second magnetic layer of said first magnetoresistance element is grounded and a terminal on said second magnetic layer of said second magnetoresistance element is connected to a power supply line through a switch portion.