2013 IEEE 31st International Conference on Computer Design (ICCD)
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Abstract

MRAM has emerged as one of the most attractive non-volatile solutions due to fast read access, low leakage power, high bit density, and long endurance. However, the high power consumption of write operations remains a barrier to the commercial adoption of MRAM technology. This paper addresses this problem by introducing low-current probabilistic writes (LCPW), a technique that reduces write access energy by lowering the amplitude of the write current pulse. Although low current pulses no longer guarantee successful bit write operations, we propose and evaluate a simple technique to ensure correctness and achieve significant power reduction over a typical MRAM implementation.
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