An Efficient Design of DCT Approximation Based on Quantum Dot Cellular Automata (QCA) Technology

Table 3

Comparison of the proposed D flip-flop with the previous works.

Circuit	Cell count	Area (μm^2)	Clock no. cycle	Crossover type
DFF [56]	66	0.08	1.5	Coplanar
DFF [57]	49	0.05	1	Not required
DFF [58]	46	0.03	0.75	Not required
DFF [21]	46	0.05	1.25	Not required
Proposed adder	42	0.04	1.5	Not required