new cnfet- based full adder cells for low- power and low- voltage applications

نویسندگان

mehdi bagherizadeh

department of computer engineering, science and research branch, islamic azad university, tehran, iran mohammad eshghi

faculty of electrical engineering, shahid beheshti university. g.c., tehran, iran

چکیده

scaling challenges and limitations of conventional silicon transistors have led the designers to apply novel nano-technologies. one of the most promising and possible nano-technologies is cnt (carbon nanotube) based transistors. cnfet have emerged as the more practicable and promising alternative device compared to the other nanotechnologies.  this technology has higher efficiency compared to the silicon-based mosfet and is appropriate for high-frequency applications. full adder cell is the  essential core and the building block of most arithmetic circuits and is placed on most parts of their critical paths .in this paper, power-efficient cnfet (carbon nanotube field effect transistor) based full adder cell is proposed. this design is simulated in several supply voltages, frequencies and load capacitors using hspice circuit simulator. considerable improvement is achieved in terms of power and pdp (power-delay-product) in comparison with other classical cnfet-based designs, in the literature. our proposed full adder can also drive large load capacitance and works properly in low supply voltages.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New CNFET- Based Full Adder cells for Low- Power and Low- Voltage Applications

Scaling challenges and limitations of conventional silicon transistors have led the designers to apply novel nano-technologies. One of the most promising and possible nano-technologies is CNT (Carbon Nanotube) based transistors. CNFET have emerged as the more practicable and promising alternative device compared to the other nanotechnologies. This technology has higher efficiency compared to th...

متن کامل

A New Low Voltage CMOS 1-Bit Full Adder for Low-Power Applications

In this paper, a new low-voltage low-power CMOS 1-bit full adder circuit is proposed. The proposed full adder can provide a full voltage swing at a low supply voltage and offers superior performance in both power and speed than the conventional full adder, the transmission full adder, and the recent low-voltage full adder. Based on the simulation results performed by HSPICE, the new low-voltage...

متن کامل

A novel low-power full-adder cell for low voltage

This paper presents a novel low-power majority function-based 1-bit full adder that uses MOS capacitors (MOSCAP) in its structure. It can work reliably at low supply voltage. In this design, the timeconsuming XOR gates are eliminated. The circuits being studied are optimized for energy efficiency at 0.18-mm CMOS process technology. The adder cell is compared with seven widely used adders based ...

متن کامل

a low-power and low-energy 1-bit full adder cell using 32nm cnfet technology node

full adder cell is often placed in the critical path of other circuits. therefore it plays an important role in determining the entire performance of digital system. moreover, portable electronic systems rely on battery and low-power design is another concern. in conclusion it is a vital task to design high-performance and low-power full adder cells. since delay opposes against power consumptio...

متن کامل

Design of a Low Power Low Voltage Full Adder

In this paper, 1 bit full adder is built under a new hybrid logic (combination of PTL and CMOS logic) style, using 14 MOSFETs. Here we use 6transistor XOR-XNOR circuit to implement the full adder. This full adder offers full voltage swing at every nodes, higher density and high speed than the conventional CMOS design style. TSPICE is the simulator used for the simulation and bsim3v32 technology...

متن کامل

A New Low Power Cmos Full Adder

Low power design of VLSI circuits has been identified as a critical technological need in recent years due to the high demand for portable consumer electronics products. In this regard many innovative designs for basic logic functions using pass transistors and transmission gates appeared in the literature recently. But they were all designed mostly by intuition and cleverness of the designer. ...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of advances in computer research

جلد ۷، شماره ۳، صفحات ۵۵-۶۶

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023