Parallel Adder

LETTERS International Journal of Recent Trends in Engineering, Vol 2, zero(prenominal) 6, November 2009

A Novel Power Delay Optimized 32-bit fit prefix Adder For High Speed Computing
P.Ramanathan 1, P.T.Vanathi 2
1

PSG College of Technology / Department of ECE, Coimbatore, India. electronic mail: pramanathan_2000@yahoo.com 2 PSG College of Technology / Department of ECE, Coimbatore, India. Email: ptvani@yahoo.com

Abstractâ€" mate Prefix addition is a technique for improving the race of binary addition. Due to continuing integrating intensity and the ontogeny needs of portable devices, low-power and high-performance designs are of prime importance. The unsullied parallel prefix common viper structures presented in the literature all over the years optimize for logical system depth, area, fan-out and interconnect count of logic circuits. In this paper, a new architecture for performing 32-bit Parallel Prefix addition is proposed. The proposed 32-bit prefix common viper is compared with several Hellenic adders of same bit width in terms of power, keep and number of computational nodes. The results reveal that the proposed 32-bit Parallel Prefix adder has the least power delay product when compared with its peer vivacious Prefix adder structures. Tanner EDA tool was used for simulating the adder designs in the TSMC 180 nm and TSMC 130 nm technologies.



mogul Termsâ€" Parallel Prefix Adder, Dot hooker, SemiDot operator, CMOS, Odd-dot operator, Even-dot operator, Odd-semi-dot operator, Even-semi-dot operator

In the supra equation, operator is applied on two pairs of bits ( pi , g i ) and ( pi ?1 , gi ?1 ) . These bits playact generate and propagate signals used in addition. The output of the operator is a new pair of bits which is again combined apply a dot operator or semi-dot operator with other pairs of bits. This procedural use of dot operator and semi-dot operator creates a prefix tree network which ultimately ends in the contemporaries of all carry signals. In the...If you want to get a full essay, order it on our website: Orderessay



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