2012
DOI: 10.3390/jlpea2020143
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Analyzing Sub-Threshold Bitcell Topologies and the Effects of Assist Methods on SRAM VMIN

Abstract: Abstract:The need for ultra low power circuits has forced circuit designers to scale voltage supplies into the sub-threshold region where energy per operation is minimized [1]. The problem with this is that the traditional 6T SRAM bitcell, used for data storage, becomes unreliable at voltages below about 700 mV due to process variations and decreased device drive strength [2]. In order to achieve reliable operation, new bitcell topologies and assist methods have been proposed. This paper provides a comparison … Show more

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Cited by 7 publications
(1 citation statement)
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“…It aims at providing on-chip memory system capable of operating below 0.4V supply voltages. Nevertheless, this comes at the cost of a reduction in the operation speed and a higher failure probability due to variations [Boley et al, 2012], [Raychowdhury et al, 2005]. The presence of short channel effects (which increases as we move to lower technology nodes) is also shooting up the probability of failure of the traditional bitcells.…”
Section: Introductionmentioning
confidence: 99%
“…It aims at providing on-chip memory system capable of operating below 0.4V supply voltages. Nevertheless, this comes at the cost of a reduction in the operation speed and a higher failure probability due to variations [Boley et al, 2012], [Raychowdhury et al, 2005]. The presence of short channel effects (which increases as we move to lower technology nodes) is also shooting up the probability of failure of the traditional bitcells.…”
Section: Introductionmentioning
confidence: 99%