9T Full Adder Design in Subthreshold Region

Table 1

Truth table of 1-bit full adder.

𝐴	𝐵	Cin	Sum	Cout
0	0	0	0	0
0	0	1	1	0
0	1	0	1	0
0	1	1	0	1
1	0	0	1	0
1	0	1	0	1
1	1	0	0	1
1	1	1	1	1