New RTD-Based General Threshold Gate Topologies and Application to Three-Input XOR Logic Gates

Table 1

Comparison between single gates and cascaded gates of three-input XOR logic based on MOBILE structure. The results are normalized based on GTG-2 result except second column (PDP = (Power at Fmax)/Fmax).

THREE-INPUT XOR TYPE	Device counts = RTD + Transistor	𝐹max	PDP
Cascaded GTG-3 [5]	25 (13+12)	1	1
GTG-2	17 (12+5)	0.66	0.85
GTG-3	21 (15+6)	1.33	0.35
GTG-4	16 (12+4)	0.92	0.53
GTG-5	20 (15+5)	1.71	0.26