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The adder circuit is used as a main component in the multiplier circuits. The Baugh-Wooley, Braun and CSA multipliers are designed by using our proposed adder cell. The proposed adder circuit is designed by using Shannon theorem. The multiplier circuits are schematised by using DSCH2 VLSI CAD tool and their layouts are generated by using Microwind 3 VLSI CAD tool. The proposed adder based multiplier...
Low power multipliers with high clock frequencies play an important role in today's digital signal processing. In this work, the performance analysis of Wallace-tree, Array and Baugh-Wooley multiplier architectures is carried out. Physical verification of all the sub-blocks is performed using HSpice to check their functionality and to optimize for low power by using transistor sizing. The layouts...
Decimal multiplication is an integral part of financial, commercial, and internet-based computations. The basic building block of a decimal multiplier is a single digit multiplier. It accepts two Binary Coded Decimal (BCD) inputs and gives a product in the range [0, 81] represented by two BCD digits. A novel design for single digit decimal multiplication that reduces the critical path delay and area...
In this paper we have analyzed an 8-bit multiplier circuit using non clocked pass gate families with help of carry save multiplier (CSA) technique. The multiplier cell of the adder is designed by using pass transistors (n-transistors), p-transistors used as cross-coupled devices. The adder cell is designed by using multiplexing control input techniques. A combination of n- and p-transistors used on...
In this paper a new technique for the design of combinational circuits for low power is introduced. According to this technique, we bypass blocks of logic when their function is not required, using low delay and area overhead components (transmission gates). The internal state of these blocks is kept unchanged, so the switching activity of the circuit is minimized, resulting to low power consumption...
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