Title
An energy harvesting wireless sensor node for IoT systems featuring a near-threshold voltage IA-32 microcontroller in 14nm tri-gate CMOS.
Abstract
A wireless sensor node (WSN) integrates a 0.79mm(2) near-threshold voltage (NTV) 32-bit Intel Architecture (IA) microcontroller (MCU) in 14nm tri-gate CMOS, along with solar cell, energy harvester, flash memory, sensors and Bluetooth Low Energy (BLE) radio, to enable always-on always-sensing (AOAS) and advanced edge computing capabilities in Internet-of-Things (IoT) systems. The MCU features four independent voltage-frequency islands (VFI), a low-leakage SRAM array, an on-die oscillator clock source capable of operating at sub-threshold voltage, power gating and multiple active/sleep states, managed by an integrated power management unit (PMU). The MCU operates across a wide frequency (voltage) range of 297MHz (1V) to 0.5MHz (308mV), and achieves a peak energy efficiency of 17pJ/cycle at an optimum supply voltage (VOPT) of 370mV, operating at 3.5MHz. The WSN, powered by a solar cell, demonstrates sustained MHz AOAS operation, consuming only 360 mu W.
Year
Venue
Field
2016
Symposium on VLSI Circuits-Digest of Papers
Flash memory,Efficient energy use,Computer science,Voltage,Energy harvesting,Electronic engineering,CMOS,Power gating,Microcontroller,Power Management Unit
DocType
Citations 
PageRank 
Conference
2
0.38
References 
Authors
0
12
Name
Order
Citations
PageRank
Somnath Paul138337.02
Vinayak Honkote2284.84
Ryan Gary Kim31018.36
Turbo Majumder4717.78
Paolo A. Aseron521818.44
Vaughn Grossnickle620.38
Robert Sankman720.38
Debendra Mallik820.38
Sandeep Jain96211.62
Sriram R. Vangal101857114.54
James Tschanz11963121.38
Vivek De123024577.83