Layout parameter analysis in Shannon expansion theorem based on 32 bit adder circuit

Abstract

The 1-bit adder circuits are schematized using pass transistor logic (PTL) technique, that’s optimized by the Shannon expansion theorem. The proposed 32bit carry increment adder (CIA) circuit is designed by bit slice method. The CIA adder layout gives tremendous change compared to existing author results. The proposed circuit achieved better performance on power consumption, speed, throughput, and area. The 32-bit adder circuits are implemented in various types of 1-bit adder cells, such as Shannon, Mixed-Shannon and MCIT-7T. Furthermore, the 32-bit CIA adder layout is furtherly investigated for RLC interconnect parameter such as capacitive impedance, inductive impedance, power factor sin ϕ, tan ϕ for applying frequency. The 32bit adder circuit acts in a better way than existing circuits in terms of power dissipation, delay, throughput, latency, power factor, sin ϕ and tan ϕ.