Reversible double-edge T trigger capable of asynchronous number setting

Abstract

The invention discloses a reversible double-edge T trigger capable of asynchronously setting numbers, which consists of five Feynman reversible logic gates and six Fredkin reversible logic gates, the logic low-level circuit is provided with an asynchronous number setting enable signal input end, a clock signal input end, a data input end, a preset number input end, a first logic low-level input end, a second logic low-level input end, a third logic low-level input end and a fourth logic low-level input end. And an asynchronous number setting enable signal output end, a trigger current state signal output end, a first garbage position output end, a second garbage position output end, a third garbage position output end, a fourth garbage position output end, a fifth garbage position output end and a sixth garbage position output end. The reversible sequential logic circuit has the advantages that the reversible sequential logic circuit has a double-edge T trigger function and an asynchronous number setting function, so that the reversible sequential logic circuit can run from a determined initial state or return to a controllable determined state from an error state after asynchronous number setting.

Description

technical field [0001] The invention relates to a reversible logic circuit, in particular to a reversible double-edge T flip-flop capable of asynchronously setting numbers, which is composed of a Feynman reversible logic gate and a Fredkin reversible logic gate. Background technique [0002] How to reduce circuit power consumption is a key issue in integrated circuit design at present. In the traditional non-reversible logic circuit, the loss of information bit data is the main cause of circuit power consumption. Therefore, the design of reversible logic circuit that can avoid the loss of information bit data has become a way of low power consumption design. At the same time, reversible logic circuits are also an important part of quantum computing and quantum information technology research. [0003] Reversible logic circuits include reversible combinational logic circuits and reversible sequential logic circuits. In the reversible sequential logic circuit, the importance...

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Problems solved by technology

[0005] However, the existing reversible flip-flops do not have the function of asynchronous number setting, therefore, the research on a reversible double-edge T flip-flop with asynchronous number setting function is beneficial to make the reversible sequential logic circuit run from a definite initial state after asynchronous number setting or from an error state back to a controllable ok state

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