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The concept worked in this paper named Turtle Logic (TL) is a probabilistic logic method based on port redundancy and complementary data, oriented to emerging CMOS technologies and beyond, where the thermal noise could be predominant and the reliability of the future circuits will be limited. The TL is a technology independent method, which aims to improve tolerance to errors due to noise in single gates, logic and functional units. The TL operation is based on the consistency relation of redundant inputs. In case of discrepancy, the output of the system keeps the previous value. Therefore, it avoids the propagation of incorrect inputs. Simulations show an excellent performance of TL in the presence of large random noise at the inputs with a practical full tolerance to input with a signal to noise ratio of 5dB. Turtle Logic in accordance to Kullback Leibler Distance noise immunity measurement for a NOT gate is approximately 3.6X, 13.4X and 20.9X times better than MRF, DCVS and standard CMOS techniques, respectively, when the gates are operate, with a power supply of 0.15 volts, a temperature of 100 oC and noisy inputs with Additive White Gaussian Noise with zero mean and a standard deviation of 60mV.
CitationGarcía, L. [et al.]. Novel redundant logic design for noisy low voltage scenarios. A: Latin American Symposium on Circuits and Systems. "LASCAS 2013 - Proceedings of 4th Latin American Symposium on Circuits and Systems". Cusco: 2013, p. 1-4.
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