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A new asymmetrical ground gated 7T SRAM circuit technique is presented in this paper to lower leakage currents and enhance noise immunity in idle memory banks. A novel write assist scheme is proposed to enhance write margin with the new memory circuit. The leakage power consumption is suppressed by up to 4.30× and the data stability is enhanced by up to 4.79× as compared with the previously published...
A 128 kb portless SRAM is presented with 1024 rows per hierarchical bitline and CMOS thyristor-based local sense amplifiers. Each portless cell is 0.317 μm2 in 45 nm CMOS and consumes 50.8 fJ of energy per access at a 17.86 ns cycle time. A 65% read SNM improvement and a 33% leakage power reduction is achieved over a conventional 6T design. The thyristor-based sense amplifier occupies 2.4 μm2 and...
A nine transistor (9T) cell at a 32nm feature size in CMOS is proposed to accomplish improvements in stability as well as power dissipation compared with previous designs for low-power memory operation. Initially, this paper shows that the proposed 9T SRAM cell can be used for robust, high-density design. Then, an optimum sizing is found for this 9T cell by considering stability, energy consumption,...
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