Author/Authors :
Mona Moradi Department of Computer Engineering - Science and Research Branch Islamic Azad University, Tehran, Iran , Reza Faghih Mirzaee Department of Computer Engineering - Science and Research Branch Islamic Azad University, Tehran, Iran , Mohammad Hossein Moaiyeri Faculty of Electrical and Computer Engineering - Shahid Beheshti University, G.C., Tehran, Iran , Keivan Navi Faculty of Electrical and Computer Engineering - Shahid Beheshti University, G.C., Tehran, Iran
كليدواژه :
Nanoelectronics , High-Frequency , High-Speed , Exclusive-OR , Full Adder , CNTFET
چكيده لاتين :
Full adder is among the most practical logic blocks. It
is the main arithmetical component of all digital systems. This
paper presents the novel design of a high-speed and high-efficient
full adder cell which is on the basis of low-complex passtransistor
logic. Using carbon nanotube field effect transistors,
formation of transmission gates are not required and the usage of
extra transistors is avoided. It benefits from ultra high
computational speed which makes it ideal for high-speed and
high-frequency applications. It could be employed in portable
devices as it consumes very low power. It has also the advantage
of working reliably in spite of fabrication imperfections.
Simulations are carried out using Synopsys HSPICE in a realistic
test bench and other various strict conditions. Simulation results
demonstrate higher efficiency with respect to other conventional
and state-of-the-art CNTFET and MOSFET implementations.
