International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 68 - Number 9 |
Year of Publication: 2013 |
Authors: Karna Sharma, Manan Sethi, Paanshul Dobriyal, Geetanjali Sharma |
10.5120/11608-6984 |
Karna Sharma, Manan Sethi, Paanshul Dobriyal, Geetanjali Sharma . Designing a Novel Power Efficient D- Flip-Flop using Forced Stack Technique. International Journal of Computer Applications. 68, 9 ( April 2013), 25-30. DOI=10.5120/11608-6984
In Integrated circuits a gargantuan portion of on chip power is expended by clocking systems, which comprises of timing elements such as flip-flops, latches and clock distribution network. These elements absorb approximately 30% to 60% of the total power dissipation in the system. In order to design high performance and power efficient circuits a scrupulous approach should be adopted to reduce the power consumed by flip-flops and latches. In this paper various power efficient flip- flops with low power clock distribution network are examined. Among these flips-flops low Power Clocked Pass Transistor Flip-Flop (LCPTFF) consumes least power than Clocked Pair Shared Flip-Flop (CPSFF), Conditional Data Mapping Flip-Flop and Conditional Discharge Flip-Flop (CDFF). We propose a novel Low Power Forced Stack Clocked Pass Transistor Flip-Flop (LP-FSCPTFF) which reduces the power consumption by approximately 30. 1% to 83. 93% at 500MHz and 25. 5% to 90. 1% at 750MHz as compared to original LCPTFF. The simulation is carried out on Tanner EDA v13. 0 at 90nm on different voltages at 500MHz and 750MHz. The temperature variation of different flip-flops is also shown at 5 °C, 2 5 °C and 50 °C.