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Multivalued flip-flops play an important role in multivalued circuits, and their clocks can also be multivalued. According to the switching rule of multivalued clocks and the operating principle of latches, this study proposes an effective method of handling multivalued clocks and a novel odd-even multiplexer for all-edges-triggered flip-flop (AETFF) based on multivalued clocks. The AETFFs structure consisting of odd-even multiplexers i.e. the oeAETFF structure not only senses every edge of multivalued clocks and functions properly, but also is much simpler and more efficient than the previous one. According to the oeAETFF structure, binary or multivalued AETFFs based on arbitrary radices clocks can be easily obtained with a simpler circuit. The oeAETFF structure not only can be implemented by CMOS technology, but also could be used as a helpful reference to guide the flip-flops design with the next-generation devices suitable for multivalued logic. At last, a CMOS quaternary oeAETFF based on quaternary clock is implemented as an instance of the oeAETFF structure. It is validated to function properly with a simpler circuit and higher efficiency by simulation and comparison.

Design of odd-even multiplexer for all-edges-triggered flip-flops