Nonvolatile storage gate, operation method for the same, and nonvolatile storage gate embedded logic circuit, and operation method for the same

摘要

Provided is a nonvolatile storage gate embedded logic circuit embedding a nonvolatile storage gate which can hold data after power supply cutoff and can cut off a power supply at the same time shifting into a standby state. The nonvolatile storage gate embedded logic circuit includes a logic calculation unit having a logic gate, and a nonvolatile storage gate having a nonvolatile storage element, a data interface control unit disposed so as to be adjoining to the nonvolatile storage element, and receiving a nonvolatile storage control signal for data read-out from the nonvolatile storage element and data write-in to the nonvolatile storage element, and a volatile storage element disposed so as to be adjoining to the nonvolatile storage element, receiving a data input signal and a clock signal, and outputting a data output signal.

主权项

1. A nonvolatile storage gate comprising;
a nonvolatile storage element; a data interface control unit adjoining the nonvolatile storage element, and receiving a nonvolatile storage control signal for reading-out data from the nonvolatile storage element and writing-in data to the nonvolatile storage element; and a volatile storage element adjoining the nonvolatile storage element, receiving a data input signal and a clock signal, and outputting a data output signal, wherein the data interface control unit comprises a data write-in driver coupled between a logic gate connected in a form of a loop shape in the volatile storage element and the nonvolatile storage element, and wherein the data write-in driver is configured to function as a buffer, wherein the data interface control unit further comprises a pass switch coupled between an output terminal of the data write-in driver and the nonvolatile storage element, the pass switch is turned ON only at the time of the data write-in operation in accordance with the received nonvolatile storage control signal.