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ICCAD
2009
IEEE

Energy reduction for STT-RAM using early write termination

9 years 1 months ago
Energy reduction for STT-RAM using early write termination
The emerging Spin Torque Transfer memory (STT-RAM) is a promising candidate for future on-chip caches due to STT-RAM's high density, low leakage, long endurance and high access speed. However, one of the major challenges of STT-RAM is its high write current, which is disadvantageous when used as an on-chip cache since the dynamic power generated is too high. In this paper, we propose Early Write Termination (EWT), a novel technique to significantly reduce write energy with no performance penalty. EWT can be implemented with low complexity and low energy overhead. Our evaluation shows that up to 80% of write energy reduction can be achieved through EWT, resulting 33% less total energy consumption, and 34% reduction in ED2 . These results indicate that EWT is an effective and practical scheme to improve the energy efficiency of a STT-RAM cache.
Ping Zhou, Bo Zhao, Jun Yang 0002, Youtao Zhang
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Where ICCAD
Authors Ping Zhou, Bo Zhao, Jun Yang 0002, Youtao Zhang
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