On the Nonvolatile Performance of Flip-Flop/SRAM Cells With a Single MTJ
Bibliographic record
Abstract
In this brief, three nonvolatile flip-flop (FF)/SRAM cells that utilize a single magnetic tunneling junction (MTJ) as nonvolatile resistive element are proposed. These cells have the same core (i.e., 6T) but they employ different numbers of MOSFETs to implement the so-called instantly ON, normally OFF mode of operation. The additional transistors are utilized for the restore operation to ensure that the data stored in the nonvolatile circuitry can be written back into the FF core once the power is made available. These three cells (7T, 9T, and 11T) are extensively analyzed in terms of their operations in 32 nm technology, such as operational delays (for the write, read, and restore operations), the static noise margin (SNM), critical charge and process variations (in both the MOSFETs and the resistive element). Simulation results show that an increase in the number of MOSFETs in the cells causes improvements in critical charge and tolerance to process variations at the expense of an increase in power dissipation. The SNM and the delay of the restore operation, however, do not necessarily increase with the number of MOSFETs in the cell, but rather on the control of access to the storage nodes from the single MTJ.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".