Name
Abstract | ||
|---|---|---|
Spin Transfer Torque (STT) memory is an emerging and promising non-volatile storage technology. However, the high write current is still a major challenge which leads to a huge power consumption of the memory. Due to an inherent torque asymmetry of the Magnetic Tunnel Junction (MTJ) device employed in STT memories, the switching time between parallel to anti-parallel and anti-parallel to parallel magnetization is significantly different. Hence, the write latencies for writing `0' and `1' are also considerably different. In this paper, we propose a technique called Asynchronous Asymmetrical Write Termination (AAWT) which utilizes this asymmetrical behavior to terminate the write operations asynchronously and as a result significantly reduces the write power consumption. Furthermore, we present two different AAWT implementations to determine the actual write termination times. The first one makes use of a clock signal and the second one employs a self-timing approach based on an internal delay element. As shown by our experimental results, AAWT can reduce the total write energy by 30% in average with a negligible area overhead. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.7873/DATE.2014.193 | Design, Automation and Test in Europe Conference and Exhibition |
Keywords | Field | DocType |
MRAM devices,low-power electronics,magnetic tunnelling,magnetoelectronics,AAWT,MTJ device,asynchronous asymmetrical write termination,internal delay element,low power STT-MRAM,magnetic tunnel junction device,nonvolatile storage technology,parallel magnetization,self-timing approach,spin transfer torque memory,torque asymmetry,write power consumption,write termination times | Clock signal,Asynchronous communication,Switching time,Torque,Computer science,Magnetoresistive random-access memory,Electronic engineering,Spin-transfer torque,Tunnel magnetoresistance,Electrical engineering,Low-power electronics | Conference |
ISSN | Citations | PageRank |
1530-1591 | 10 | 0.63 |
References | Authors | |
13 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Rajendra Bishnoi | 1 | 132 | 19.64 |
| Mojtaba Ebrahimi | 2 | 336 | 24.74 |
| Fabian Oboril | 3 | 288 | 26.71 |
| Mehdi B. Tahoori | 4 | 1537 | 163.44 |