A comparative study of STT-MTJ based non-volatile flip-flops

Taehui Na; Kyungho Ryu; Jisu Kim; Seung H. Kang; Seong Ook Jung

doi:10.1109/ISCAS.2013.6571794

A comparative study of STT-MTJ based non-volatile flip-flops

Taehui Na, Kyungho Ryu, Jisu Kim, Seung H. Kang, Seong Ook Jung

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

30 Citations (Scopus)

Abstract

In this paper, we categorize STT-MTJ based non-volatile flip-flops (NV-FF) into two basic structures: Merged latch and sensing circuit (MLS) structure and separated latch and sensing circuit (SLS) structure. We also analyze the two structures with various types of sensing and write circuits. HSPICE simulation results using the industry-compatible 45-nm model parameter shows the SLS structure has better performance according to D-Q delay, PDP, and sensing current than the MLS structure because the SLS structure can optimize the FF operation and the sensing operation independently. Among various types of sensing circuit, the cross coupled inverter based sensing circuit including two MTJs and the single ended sensing circuit including two MTJs show better performances on low sensing current and high yield.

Original language	English
Title of host publication	2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Pages	109-112
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2013.6571794
Publication status	Published - 2013
Event	2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China Duration: 2013 May 19 → 2013 May 23

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Other

Other	2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Country/Territory	China
City	Beijing
Period	13/5/19 → 13/5/23

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1109/ISCAS.2013.6571794

Cite this

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title = "A comparative study of STT-MTJ based non-volatile flip-flops",

abstract = "In this paper, we categorize STT-MTJ based non-volatile flip-flops (NV-FF) into two basic structures: Merged latch and sensing circuit (MLS) structure and separated latch and sensing circuit (SLS) structure. We also analyze the two structures with various types of sensing and write circuits. HSPICE simulation results using the industry-compatible 45-nm model parameter shows the SLS structure has better performance according to D-Q delay, PDP, and sensing current than the MLS structure because the SLS structure can optimize the FF operation and the sensing operation independently. Among various types of sensing circuit, the cross coupled inverter based sensing circuit including two MTJs and the single ended sensing circuit including two MTJs show better performances on low sensing current and high yield.",

author = "Taehui Na and Kyungho Ryu and Jisu Kim and Kang, {Seung H.} and Jung, {Seong Ook}",

year = "2013",

doi = "10.1109/ISCAS.2013.6571794",

language = "English",

isbn = "9781467357609",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

pages = "109--112",

booktitle = "2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013",

note = "2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 ; Conference date: 19-05-2013 Through 23-05-2013",

}

Na, T, Ryu, K, Kim, J, Kang, SH & Jung, SO 2013, A comparative study of STT-MTJ based non-volatile flip-flops. in 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013., 6571794, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 109-112, 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013, Beijing, China, 13/5/19. https://doi.org/10.1109/ISCAS.2013.6571794

TY - GEN

T1 - A comparative study of STT-MTJ based non-volatile flip-flops

AU - Na, Taehui

AU - Ryu, Kyungho

AU - Kim, Jisu

AU - Kang, Seung H.

AU - Jung, Seong Ook

PY - 2013

Y1 - 2013

N2 - In this paper, we categorize STT-MTJ based non-volatile flip-flops (NV-FF) into two basic structures: Merged latch and sensing circuit (MLS) structure and separated latch and sensing circuit (SLS) structure. We also analyze the two structures with various types of sensing and write circuits. HSPICE simulation results using the industry-compatible 45-nm model parameter shows the SLS structure has better performance according to D-Q delay, PDP, and sensing current than the MLS structure because the SLS structure can optimize the FF operation and the sensing operation independently. Among various types of sensing circuit, the cross coupled inverter based sensing circuit including two MTJs and the single ended sensing circuit including two MTJs show better performances on low sensing current and high yield.

AB - In this paper, we categorize STT-MTJ based non-volatile flip-flops (NV-FF) into two basic structures: Merged latch and sensing circuit (MLS) structure and separated latch and sensing circuit (SLS) structure. We also analyze the two structures with various types of sensing and write circuits. HSPICE simulation results using the industry-compatible 45-nm model parameter shows the SLS structure has better performance according to D-Q delay, PDP, and sensing current than the MLS structure because the SLS structure can optimize the FF operation and the sensing operation independently. Among various types of sensing circuit, the cross coupled inverter based sensing circuit including two MTJs and the single ended sensing circuit including two MTJs show better performances on low sensing current and high yield.

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U2 - 10.1109/ISCAS.2013.6571794

DO - 10.1109/ISCAS.2013.6571794

M3 - Conference contribution

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SN - 9781467357609

T3 - Proceedings - IEEE International Symposium on Circuits and Systems

SP - 109

EP - 112

BT - 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013

T2 - 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013

Y2 - 19 May 2013 through 23 May 2013

ER -

A comparative study of STT-MTJ based non-volatile flip-flops

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