Title
A 47.14-$\Mu\Text{W}$ 200-Mhz Mos/Mtj-Hybrid Nonvolatile Microcontroller Unit Embedding Stt-Mram And Fpga For Iot Applications
Abstract
The demand for energy-efficient, high-performance microcontroller units (MCUs) for the use in power-supply-critical Internet-of-Things (IoT) sensor-node applications has witnessed a substantial increase. In response, research concerning the development of several low-power-consuming MCUs has been actively pursued. The performance level of such MCUs, however, has not been sufficient, thereby rendering them non-feasible for the use in IoT sensor-node applications that process a large number of received signals immediately followed by extraction of valuable information from them to limit data transferred to a data center. To realize next-generation IoT systems based on intelligent sensor-node application, ultra-low-power high-performance MCUs need to be developed. This paper presents an ultra-low-power-consuming and high-performance MCU configuration based on the spintronics device technology, using which all modules are non-volatilized, and any wasteful power consumption is eliminated by controlling the power supplied independently to each module. By incorporating a reconfigurable accelerator module, for performing various signal-processing procedures in sensor-node applications, and a memory controller, which can speed up the entire system by relaxing the data-transfer bottleneck of logic and memory, the proposed MCU configuration achieves ultra-low power consumption and high-speed operation. As confirmed by the results obtained via measurements performed on a fabricated chip, the proposed MCU design, on average, consumed 47.14 $\mu \text{W}$ power at an operating frequency of 200 MHz. This corresponds to the world's highest signal-processing performance and energy efficiency of highly functional IoT sensor nodes powered by harvested energy
Year
DOI
Venue
2019
10.1109/JSSC.2019.2930910
IEEE JOURNAL OF SOLID-STATE CIRCUITS
Keywords
DocType
Volume
Nonvolatile memory, Spintronics, Performance evaluation, Magnetic tunneling, Central Processing Unit, Memory management, Standards, Energy harvesting, field-programmable gate arrays, Internet of Things, magnetic tunnel junction, microcontroller unit (MCU), spin-transfer-torque magnetoresistive random access memory (STT-MRAM)
Journal
54
Issue
ISSN
Citations 
11
0018-9200
0
PageRank 
References 
Authors
0.34
0
16
Name
Order
Citations
PageRank
Masanori Natsui18015.10
Daisuke Suzuki2477.32
Akira Tamakoshi3102.46
Toshinari Watanabe411.10
Hiroaki Honjo59011.43
Hiroki Koike6253.90
Takashi Nasuno711.10
Yitao Ma8103.29
Takaho Tanigawa911.10
Yasuo Noguchi1011.10
Mitsuo Yasuhira1111.10
Sato, H.124211.79
Ikeda, S.13365.83
Hideo Ohno1412333.57
Tetsuo Endoh1515535.26
Takahiro Hanyu1644178.58