Simple Exact Algorithm for Transistor Sizing of Low-Power High-Speed Arithmetic Circuits

Table 1

Results for XOR/XNOR 6 T in 1.2 V.

$W_i$	$W_{\text{N}1}$	$W_{\text{N}2}$	$W_{\text{P}1}$	$W_{\text{P}2}$	$W_{\text{FBN}}$	$W_{\text{FBP}}$
$k_i$	$k_1$		$k_2$		$k_3$	$k_4$
$W^{*}=\mathrm{\hspace{0.17em}\hspace{0.17em}}0.65\mathrm{\hspace{0.17em}\hspace{0.17em}}(\mu \text{m})$	1		1		1	1
PDP (fJ)	0.282
$k_i$	3		0.5		1	0.6
PDP (fJ)	0.257		0.243		0.243	0.208
$k_i$	3.1		0.5		1	0.6
PDP (fJ)	0.207		0.207		0.207	0.207