Carry select adder with sub-block power gating for reducing active-mode leakage in sub-32-nm VLSIs
نویسندگان
چکیده
منابع مشابه
An Area Efficient 32-bit Carry-select Adder for Low Power Applications
CSLA is used in many computational systems to alleviate the problem of carry propagation delay by independently generating multiple carries and then select a carry to generate the sum [1]. However, the CSLA is not area efficient because it uses multiple pairs of Ripple Carry Adders (RCA) to generate partial sum and carry by considering carry input Cin=0 and cin=1, then the final sum and carry a...
متن کاملCarry Select Adder – Review
To perform fast addition operation, CSLA is one of the fastest adders used in many dataprocessing processors. There is further scope of improving the performance parameters of CSLA. This paper provides a comparative analysis of CSLA and reviews about various proposed schemes used to reduce the delay time, area occupied and power consumption in CSLA.
متن کاملA low power carry select adder with reduced area
A carry-select adder can be implemented by using single ripple carry adder and an add-one circuit [1] instead of using dual ripple-carry adders. This paper proposes a new add-one circuit using the first zero finding circuit and multiplexers to reduce the area and power with no speed penalty. For bit length n = 64, this new carry-select adder requires 38 percent fewer transistors than the dual r...
متن کاملLow power and reduced area Carry Select Adder
Power dissipation is one of the most important design objectives in integrated circuits, after speed. As adders are the most widely used components in such circuits, design of efficient adder is of much concern for researchers.From the structure of the CSLA, it is clear that there is scope for reducing the area and power consumption in the CSLA. This work uses a fewer transistors to significant...
متن کاملDesign of Area and Power Efficient Modified Carry Select Adder
Adders are one of the widely used digital components in digital integrated circuit design. The Carry Select Adder (CSA) provides a good compromise between cost and performance in carry propagation adder design. However, conventional CSA is still area-consuming due to the dual ripple carry adder (RCA) structure. In this paper, modification is done at gate-level to reduce area and power consumpti...
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ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2011
ISSN: 1349-2543
DOI: 10.1587/elex.8.1322