Previous Article in Journal
Performance and Power Analysis of HPC Workloads on Heterogeneous Multi-Node Clusters
Article Menu

Export Article

Open AccessArticle
J. Low Power Electron. Appl. 2018, 8(2), 14; https://doi.org/10.3390/jlpea8020014

0.45 v and 18 μA/MHz MCU SOC with Advanced Adaptive Dynamic Voltage Control (ADVC)

1
PLSense, Yokneam 2066724, Israel
2
Faculty of Engineering, Bar Ilan University, Ramat Gan 52900, Israel
*
Author to whom correspondence should be addressed.
Received: 9 April 2018 / Revised: 1 May 2018 / Accepted: 2 May 2018 / Published: 9 May 2018
(This article belongs to the Special Issue Selected Papers from IEEE S3S Conference 2017)
View Full-Text   |   Download PDF [4820 KB, uploaded 10 May 2018]   |  

Abstract

An ultra-low-power MicroController Unit System-on-Chip (MCU SOC) is described with integrated DC to DC power management and Adaptive Dynamic Voltage Control (ADVC) mechanism. The SOC, designed and fabricated in a 40 nm ULP standard CMOS technology, includes the complete Synopsys ARC EM5D core MCU, featuring a full set of DSP instructions and minimizing energy consumption at a wide range of frequencies: 312 K–80 MHz. A number of unique low voltage digital libraries, comprising of approximately 300 logic cells and sequential elements, were used for the MCU SOC design. On-die silicon sensors were utilized to continuously change the operating voltage to optimize power/performance for a given frequency and environmental conditions, and also to resolve yield and life time problems, while operating at low voltages. A First Fail (FFail) mechanism, which can be digitally and linearly controlled with up to 8 bits, detects the failing SOC voltage at a given frequency. The core operates between 0.45–1.1 V volts with a direct battery connection for an input voltage of 1.6–3.6 V. Measurement results show that the peak energy efficiency is 18μW/MHz. A comparison to state-of-the-art commercial SOCs is presented, showing a 3–5× improved current/DMIPS (Dhrystone Million Instructions per second) compared to the next best chip. View Full-Text
Keywords: subthreshold logic; low voltage MCU SOC; adaptive dynamic voltage control (ADVC), first fails circuit subthreshold logic; low voltage MCU SOC; adaptive dynamic voltage control (ADVC), first fails circuit
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Zangi, U.; Feldman, N.; Hadas, T.; Dayag, N.; Shor, J.; Fish, A. 0.45 v and 18 μA/MHz MCU SOC with Advanced Adaptive Dynamic Voltage Control (ADVC). J. Low Power Electron. Appl. 2018, 8, 14.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Low Power Electron. Appl. EISSN 2079-9268 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top