Stability Analysis of Robust 7T SRAM Cell for 32 nm CMOS
摘要
With a focus on increased write margin, a unique 7T SRAM architecture has been put forth in this study. In addition to standard VTH devices at the 32nm CMOS technology node, the design includes a low-threshold voltage (VTH) MOS as a feedback path between the inverter pairs. In contrast with previous SRAM architectures, the cell presented exhibits a noticeable betterment in write margin, SNM, power consumed and delay. The cell presented has read-1 (read-0) power of 887.2 nW (10.09 µW) and a write-1 (write-0) power of 1087 nW (26.6 µW). 8T, 9T, and 10T cells had write-1 powers of 112.2%, 113.70%, and 136.11% of power of the novel SRAM cell presented.