Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS

E. Laulainen; M.J. Turnquist; Jani Mäkipää; L. Koskinen

doi:10.1109/ISCAS.2012.6271936

Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS

E. Laulainen, M.J. Turnquist, Jani Mäkipää, L. Koskinen

VTT Technical Research Centre of Finland

Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

3 Citations (Scopus)

Abstract

Subthreshold voltage operation enables digital systems to operate at ultra-low energy levels.
However, as the voltage is reduced into subthreshold, the required safety margins become unrealistically large due to exponential dependencies.
These margins can be addressed in a system by sensors, replica-path circuits, or timing error detection (TED). Each of these methods require additional energy overhead. TED is the only method that accounts for both global and local variations.
This paper presents the first TED 8 bit microcontroller that is able to operate in subthreshold.
The microcontroller uses adaptable EDS circuits to adjust to system-level constraints. It is built in 65 nm CMOS, uses 10.42 pJ/instruction, occupies an area of 50,200 μm 2 , and operates down to 300 mV.

Original language	English
Title of host publication	Proceedings ISCAS 2012
Subtitle of host publication	International Symposium on Circuits and Systems
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	2953-2956
ISBN (Electronic)	978-1-4673-0219-7
ISBN (Print)	978-1-4673-0218-0
DOIs	https://doi.org/10.1109/ISCAS.2012.6271936
Publication status	Published - 2012
MoE publication type	Not Eligible
Event	IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul Duration: 20 May 2012 → 23 May 2013

Conference

Conference	IEEE International Symposium on Circuits and Systems, ISCAS 2012
Abbreviated title	ISCAS 2012
City	Seoul
Period	20/05/12 → 23/05/13

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10.1109/ISCAS.2012.6271936

Cite this

@inproceedings{f6da199ede514ea3b19d2dc06c409cab,

title = "Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS",

abstract = "Subthreshold voltage operation enables digital systems to operate at ultra-low energy levels. However, as the voltage is reduced into subthreshold, the required safety margins become unrealistically large due to exponential dependencies. These margins can be addressed in a system by sensors, replica-path circuits, or timing error detection (TED). Each of these methods require additional energy overhead. TED is the only method that accounts for both global and local variations. This paper presents the first TED 8 bit microcontroller that is able to operate in subthreshold. The microcontroller uses adaptable EDS circuits to adjust to system-level constraints. It is built in 65 nm CMOS, uses 10.42 pJ/instruction, occupies an area of 50,200 μm 2 , and operates down to 300 mV.",

author = "E. Laulainen and M.J. Turnquist and Jani M{\"a}kip{\"a}{\"a} and L. Koskinen",

year = "2012",

doi = "10.1109/ISCAS.2012.6271936",

language = "English",

isbn = "978-1-4673-0218-0",

pages = "2953--2956",

booktitle = "Proceedings ISCAS 2012",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

note = "IEEE International Symposium on Circuits and Systems, ISCAS 2012, ISCAS 2012 ; Conference date: 20-05-2012 Through 23-05-2013",

}

Laulainen, E, Turnquist, MJ, Mäkipää, J & Koskinen, L 2012, Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS. in Proceedings ISCAS 2012: International Symposium on Circuits and Systems. IEEE Institute of Electrical and Electronic Engineers, pp. 2953-2956, IEEE International Symposium on Circuits and Systems, ISCAS 2012, Seoul, 20/05/12. https://doi.org/10.1109/ISCAS.2012.6271936

Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS. / Laulainen, E.; Turnquist, M.J.; Mäkipää, Jani et al.
Proceedings ISCAS 2012: International Symposium on Circuits and Systems. IEEE Institute of Electrical and Electronic Engineers, 2012. p. 2953-2956.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS

AU - Laulainen, E.

AU - Turnquist, M.J.

AU - Mäkipää, Jani

AU - Koskinen, L.

PY - 2012

Y1 - 2012

N2 - Subthreshold voltage operation enables digital systems to operate at ultra-low energy levels. However, as the voltage is reduced into subthreshold, the required safety margins become unrealistically large due to exponential dependencies. These margins can be addressed in a system by sensors, replica-path circuits, or timing error detection (TED). Each of these methods require additional energy overhead. TED is the only method that accounts for both global and local variations. This paper presents the first TED 8 bit microcontroller that is able to operate in subthreshold. The microcontroller uses adaptable EDS circuits to adjust to system-level constraints. It is built in 65 nm CMOS, uses 10.42 pJ/instruction, occupies an area of 50,200 μm 2 , and operates down to 300 mV.

AB - Subthreshold voltage operation enables digital systems to operate at ultra-low energy levels. However, as the voltage is reduced into subthreshold, the required safety margins become unrealistically large due to exponential dependencies. These margins can be addressed in a system by sensors, replica-path circuits, or timing error detection (TED). Each of these methods require additional energy overhead. TED is the only method that accounts for both global and local variations. This paper presents the first TED 8 bit microcontroller that is able to operate in subthreshold. The microcontroller uses adaptable EDS circuits to adjust to system-level constraints. It is built in 65 nm CMOS, uses 10.42 pJ/instruction, occupies an area of 50,200 μm 2 , and operates down to 300 mV.

U2 - 10.1109/ISCAS.2012.6271936

DO - 10.1109/ISCAS.2012.6271936

M3 - Conference article in proceedings

SN - 978-1-4673-0218-0

SP - 2953

EP - 2956

BT - Proceedings ISCAS 2012

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - IEEE International Symposium on Circuits and Systems, ISCAS 2012

Y2 - 20 May 2012 through 23 May 2013

ER -

Adaptive subthreshold timing-error detection 8 bit microcontroller in 65 nm CMOS

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