Realisation of multiple-valued functions using the capacitive threshold logic gate

The circuit-level hardware realisation of several multiple-valued logic functions using the capacitive threshold logic design style is presented. The generic design approach for multiple-input, multiple-output and multiple-level transfer functions is shown. SPICE simulations of complex operators demonstrate correct operation which qualifies the proposed circuits for integration into larger multiple-valued logic systems. An analysis of noise margin figures and comparisons with previously published circuit examples are provided.