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Low Power Nonvolatile Counter Unit with Fine-Grained Power Gating
Shuta TOGASHI Takashi OHSAWA Tetsuo ENDOH
IEICE TRANSACTIONS on Electronics
Publication Date: 2012/05/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices)
MTJ, nonvolatile, fine-grained power gating, counter unit, low power,
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In this paper, we propose a new low power nonvolatile counter unit based on Magnetic Tunnel Junction (MTJ) with fine-grained power gating. The proposed counter unit consists of only a single latch with two MTJs. We verify the basic operation and estimate the power consumption of the proposed counter unit. The operating power consumption of the proposed nonvolatile counter unit is smaller than the conventional one below 140 kHz. The power of the proposed unit is 74.6% smaller than the conventional one at low frequency.