Title
An MTJ-Based Asynchronous System With Extremely Fine-Grained Voltage Scaling
Abstract
In this work, we present an asynchronous MTJ-CMOS hybrid system with extremely fine-grained voltage scaling (EFGVS) technique. The supply voltage of the system is turned on/off by asynchronous bundled-data handshake signals. The MTJ write circuit is variation robust, self-terminated and redundant-write preventing. Besides, EFGVS and asynchronous data driven handshake enhance the timing robustness by removing the matching delay elements and reducing timing assumptions. The completion detection circuitry is also simplified. A RISC processor with proposed techniques is designed and fabricated by 55nm technology. The voltage supplies are turned on/off within tens of picoseconds. The energy for writing MTJs is 0.45pJ. The tolerance of the minimum TMR due to process variation is 75%. Sleep mode leakage power can be reduced over 10× by powering off modules with the Break-even Time of 23.6 ns. Because of the extremely fine-grained voltage scaling, no more than 20% of the modules are powered on during the execution.
Year
DOI
Venue
2021
10.1109/TCSI.2020.3036011
IEEE Transactions on Circuits and Systems I: Regular Papers
Keywords
DocType
Volume
Asynchronous,extremely fine-grained voltage scaling,MTJ-CMOS hybrid system,non-volatility,redundant write prevention and self-write termination
Journal
68
Issue
ISSN
Citations 
1
1549-8328
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Ningyuan Yin100.34
Baofa Huang200.34
Xiaobai Chen300.34
Jianjun Chen43912.52
Zhiyi Yu515818.40