IC Layout Design of Carry Lookahead Adder at 90nm Technology using GNU/Electric
نویسندگان
چکیده
منابع مشابه
Circuit Design for A Measurement-Based Quantum Carry-Lookahead Adder
We present the design and evaluation of a quantum carry-lookahead adder (QCLA) using measurement-based quantum computation (MBQC), called MBQCLA. QCLA was originally designed for an abstract, concurrent architecture supporting long-distance communication, but most realistic architectures heavily constrain communication distances. The quantum carry-lookahead adder is faster than a quantum ripple...
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We present an efficient addition circuit, borrowing techniques from the classical carry-lookahead arithmetic circuit. Our quantum carrylookahead (qcla) adder accepts two n-bit numbers and adds them in O(log n) depth using O(n) ancillary qubits. We present both in-place and out-of-place versions, as well as versions that add modulo 2n and modulo 2n − 1. Previously, the linear-depth ripple-carry ...
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This paper presents a comparative research of low-power and high-speed 4-bit full adder circuits. The representative adders used are a ripple carry adder (RCA) and a carry-lookahead adder (CLA). We also design a proposed carrylookahead adder (PCLA) using a new method that uses NAND gate for modification which helps in reducing the powerdelay product (PDP) for high performance applications. To y...
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Adders are some of the most critical data path circuits requiring considerable design effort in order to “squeeze” out as much performance gain as possible. Many adder designs manage high performance by reducing the delay of the critical path, an effort that results in high area overhead in most cases. In this paper we present a carry lookahead adder (CLA) with a prediction scheme that results ...
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Reversible logic circuits have the ability to produce zero power dissipation which has found its importance in quantum computing, optical computing and low power digital circuits. The study presents improved and efficient reversible logic circuits for carry skip adder and carry skip BCD adder. The performance of the proposed architecture is better than the existing works in terms of gate count,...
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ژورنال
عنوان ژورنال: International Journal for Research in Applied Science and Engineering Technology
سال: 2018
ISSN: 2321-9653
DOI: 10.22214/ijraset.2018.5294