Implementation of ternary identity cells using c.m.o.s. integrated circuits

Most of the ternary operators recently described are based on the identity cell and realised by c.m.o.s. integrated circuits. Three simpler designs of the identity cell are presented here: the 2-transistor inverter, the improved-speed 6-transistor cell and the all-c.m.o.s. micropower cell using only 12 transistors.