1. Hybrid GDI-NCL for area/power reduction
- Author
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Prashanthi Metku, Yong-Bin Kim, Ramu Seva, Minsu Choi, and Kyung Ki Kim
- Subjects
Combinational logic ,Adder ,Engineering ,business.industry ,020208 electrical & electronic engineering ,Transistor ,Electrical engineering ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,020202 computer hardware & architecture ,law.invention ,Integrated injection logic ,CMOS ,law ,Logic gate ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,Electronic engineering ,Hardware_ARITHMETICANDLOGICSTRUCTURES ,business ,Hardware_LOGICDESIGN ,Asynchronous circuit ,Electronic circuit - Abstract
Null Convection Logic is a well-known paradigm for designing asynchronous logic circuits. The conventional CMOS-based NCL designs suffers larger area overhead and power consumption. A low power design technique called Gate Diffusion Input (GDI) has been adopted to overcome this limitation. In GDI technology, voltage swing exhibits significant voltage drop across the circuit. Therefore, not suitable for designing large combinational circuits. A novel HYBRID (CMOS+GDI) design is proposed in this work to efficiently address this issue. The HYBRID design utilizes both CMOS and GDI technology to reduce the number of transistor and power dissipation when compared to CMOS NCL circuits. The proposed approach is implemented in NCL Ripple Carry Adder (RCA) and simulated in Cadence Virtuoso for verification.
- Published
- 2016
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