1. Design of an Area-Efficient Computing in Memory Platform Based on STT-MRAM.
- Author
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Wang, Chao, Wang, Zhaohao, Wang, Gefei, Zhang, Youguang, and Zhao, Weisheng
- Subjects
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COMPUTING platforms , *RANDOM access memory , *COMPUTER architecture , *THRESHOLD logic , *MAGNETIC torque - Abstract
In the era of big data, the memory wall between the processor and the memory as well as leakage current have become major bottlenecks of the traditional CMOS-based Von-Neumann computer architecture. Computing-in-memory (CiM) based on non-volatile memories (NVMs) is considered a promising method to solve the above-mentioned issues in computing systems. In this article, we propose a CiM platform based on spin-transfer torque magnetic random access memory (STT-MRAM). On the basis of the conventional CiM with AND/OR logic functions, the full-adder (FA) arithmetic operation is achieved with slight circuits modification by exploiting majority logic. Due to the parallel processing of carry and sum operations in multi-bit FA operation, the latency overhead caused by the two-step scheme is acceptable. The hybrid spintronic/CMOS simulations on the 40 nm technology node prove the functionality and performance of the proposed CiM platform. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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