A New Design 6T Full Adder Circuit Using Novel 2T XNOR Gates

Provided by: Iosrjournals
Topic: Hardware
Format: PDF
Exclusive-NOR (XNOR) gates are important in digital circuits. This paper proposes the novel design of 2T XNOR gate using pass transistor logic. The proposed circuit utilizes the least number of transistors and no complementary input signals is used. The design has been compared with earlier designed XNOR gates and a significant improvement in silicon area and power-delay product has been obtained against 3T XNOR gate. Instead of cascading two two-input XNOR gates, the authors design a new structure of three-input function on the transistor level in this paper.

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