CMOS four-valued logic circuits using charge control technique

CMOS multiple-valued logic circuits using a charge-control method, which are suitable for use in synchronous sequential circuits together with the static-type MAX and MIN circuits, are presented. It is shown that circuits for conversion of logical values that are usually realized using complicated circuit configurations can be replaced by simple circuits with this approach. The technique of charge control that is presented here is similar to that used as the method of precharge in the usual dynamic-type MOS memory devices. The simulation results of such circuits using SPICE-2 are shown.<
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