Efficient QCA Exclusive-or and Multiplexer Circuits Based on a Nanoelectronic-Compatible Designing Approach

Table 4

Comparison results of the presented multiplexers.

	Circuit	Gate count; (majority gate + inverter)	Area (m^2)	Cell count	Latency; (clock)	Cross-over type
2 : 1 multiplexer	[12]	4	0.08	46	1	Multilayer
	[13]	4	0.06	36	1	Multilayer
	[14]	3	0.07	54	1	Coplanar
	[15]	3	0.09	60	1	Coplanar (rotated cells)
	[16]	3	0.07	56	1	Coplanar
	[17]	4	0.05	38	1	Not required
	[18]	5	0.02	23	3/4	Not required
	The proposed	3	0.03	23	3/4	Not required
4 : 1 multiplexer	[19]	15	0.25	246		Multilayer
	[20]	18	0.25	124		Not Required
	[21]	11	0.15	154		Multilayer
	[14]	9	0.24	159		Coplanar
	[15]	9	0.72	456		Coplanar
	[16]	11	0.25	215		Coplanar
	[22]	14	0.08	73		Coplanar
	The proposed	9	0.11	82		Not required