標題: Efficient Implementation of Boolean and Full-Adder Functions With 1T1R RRAMs for Beyond Von Neumann In-Memory Computing
作者: Wang, Zhuo-Rui
Li, Yi
Su, Yu-Ting
Zhou, Ya-Xiong
Cheng, Long
Chang, Ting-Chang
Xue, Kan-Hao
Sze, Simon M.
Miao, Xiang-Shui
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: 1T1R;8-bit adder;Boolean logic;in-memory computing;resistive random access memory (RRAM)
公開日期: 1-Oct-2018
摘要: In-memory computing architecture is an emerging revolutionary computing paradigm that can break the von Neumann bottleneck. Computing methodology and circuit codesign using the CMOS compatible 1T1R resistive random access memory (RRAM) integration structure is presented in this paper. Functionally complete Boolean logic and arithmetic functions are experimentally demonstrated. With a single 40-nm CMOS process 1T1R unit, each of the 16 binary logics can be realized in two logic steps with an additional readout step for cascading, which shows functional reconfiguration and low computational complexity. Up to 10(7) cycles of NAND and XOR logic operations are performed to validate the correctness and reliability. Moreover, several fundamental adder circuits are designed and experimentally demonstrated in 1T1R devices as the proof of concept of the 1T1R computing architecture. The adders proposed in this paper include a ripple-carry adder and its optimized design and a carry-select adder, which all show promising advantages in nonvolatility, computation speed, and circuit area. This paper reports the most complex yet efficient RRAM-based 8-bit addition function experimentally so far and lays a solid foundation for constructing the future in-memory computing architecture.
URI: http://dx.doi.org/10.1109/TED.2018.2866048
http://hdl.handle.net/11536/148192
ISSN: 0018-9383
DOI: 10.1109/TED.2018.2866048
期刊: IEEE TRANSACTIONS ON ELECTRON DEVICES
Volume: 65
起始頁: 4659
結束頁: 4666
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