Patent ID: 8008745

Claim:
A non-volatile latch circuit comprising: at least one input terminal capable of inputting a logic state; an output terminal capable of outputting a logic state; a volatile latch circuit including at least one semiconductive element in electrical communication with the at least one input terminal and the output terminal and capable of receiving and volatilely storing a logic state inputted to the at least one input terminal; a two-terminal nanotube switching element comprising a nanotube fabric article and in electrical communication with the volatile latch circuit, wherein the nanotube switching element is capable of switching between a relatively low resistance state and a relatively high resistance state in response to electrical stimulus applied at the two terminals of the nanotube switching element, wherein the nanotube switching element is capable of nonvolatilely retaining the relatively low or the relatively high resistance state; wherein when the nanotube switching element is in the relatively low resistance state, the volatile latch circuit retains a first logic state and outputs the first logic state at the output terminal and wherein when the nanotube switching element is in the relatively high resistance state, the volatile latch circuit retains a second logic state outputted at the output terminal.