Title :
Minimizing area and power of sequential CMOS circuits using threshold decomposition
Author :
Kulkarni, Niranjan ; Nukala, Nishant ; Vrudhula, Sarma
Author_Institution :
Sch. of Comput., Arizona State Univ., Tempe, AZ, USA
Abstract :
This paper describes the design of a standard cell library of differential mode threshold gates, referred to as a Threshold Logic Latch or TLL, and new threshold function identification and decomposition methods to map a conventional logic network consisting of logic gates and flipflops, into a hybrid network that consists of both TLLs and conventional logic gates. After logic synthesis and physical design (placement and routing) using a commercial 65nm LP (low power) library, and commercial design tools, the hybrid circuits are shown to have up to 35% less dynamic power, about 50% less leakage power and around 37% less area when compared to the corresponding conventional design operated at the same (peak) frequency.
Keywords :
CMOS logic circuits; flip-flops; logic design; logic gates; sequential circuits; conventional logic network; differential mode threshold gates; flipflops; hybrid circuits; hybrid network; leakage power; logic gates; logic synthesis; physical design; sequential CMOS circuits; size 65 nm; standard cell library; threshold decomposition; threshold function identification; threshold logic latch; Boolean functions; Data structures; Delay; Libraries; Logic gates; Microprocessors; Boolean Decomposition; Dynamic Power; Leakage Power; Sequential Circuits; TLL; Technology Mapping; Threshold Logic;
Conference_Titel :
Computer-Aided Design (ICCAD), 2012 IEEE/ACM International Conference on
Conference_Location :
San Jose, CA