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Design of 10T SRAM Cell for Low Power and High Speed Applications

Rajat Gupta, Amit S. Rajput, Nikhil Saxena


This paper presents techniques for designing a low-power and higher read speed Static Random Access Memory (SRAM) cell. The cell achieves low power dissipation due to Virtual Ground (VGND) scheme and provides higher read performance due to Forward Body Biasing (FBB). Design metrics of the proposed SRAM cell was studied and compared with that of CON 6T, CON D10T, TG 8T, 9T, and ST-10T SRAM cells. It was observed that the proposed design shows significant improvements in read current, read delay over 6T, TG 8T, 9T, ST- 10T. However, write delay and WSNM of proposed cell is significantly same as that of CON 6T and read decoupled SRAM cells but its RSNM is similar to read decoupled SRAM cells. Proposed SRAM cell has simulated at 45 nm technology PTM files for estimating its design metrics by using HSPICE circuit simulator. The proposed design achieves 27%/36%/82%/32%/26% improvement in TRA as compared to 6T/CON D10T/9T/TG 8T/ST- 10T. An improvement of 66%/55%/72% in RSNM was observed as compared to 6T/TG8T/ST- 10T. The proposed design consumes 39%/19%/22% less power during hold mode @ VDD =0.7 V as compared to CON D10T/9T/ ST-10T.

Keywords: FBB and VGND techniques, read current, read delay, RSNM, WSNM

Cite this Article
Gupta R, Rajput AS, Saxena N. Design of 10T SRAM Cell for Low Power and High Speed Applications. Journal of Electronic Design and Technology. 2017; 8(2): 16–27p.

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