2014
DOI: 10.7567/jjap.53.04ee02
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A normally-off microcontroller unit with an 85% power overhead reduction based on crystalline indium gallium zinc oxide field effect transistors

Abstract: A low-power normally-off microcontroller unit (NMCU) having state-retention flip-flops (SRFFs) using a c-axis aligned crystalline oxide semiconductor (CAAC-OS) such as indium gallium zinc oxide (IGZO) transistors and employing a distributed backup and recovery method (distributed method) is fabricated. Compared to an NMCU employing a centralized backup and recovery method (centralized method), the NMCU employing the distributed method can be powered off approximately 75 µs earlier after main processing and can… Show more

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Cited by 6 publications
(2 citation statements)
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“…In addition, particular techniques for energy saving in WSAN nodes have already been studied and have shown remarkable results. Some of them have focused on the wakeup and idle states of MCUs [ 99 , 108 , 109 ], or on the behavior of MCUs as normally-off devices [ 110 , 111 ].…”
Section: The Sensotube Architecturementioning
confidence: 99%
“…In addition, particular techniques for energy saving in WSAN nodes have already been studied and have shown remarkable results. Some of them have focused on the wakeup and idle states of MCUs [ 99 , 108 , 109 ], or on the behavior of MCUs as normally-off devices [ 110 , 111 ].…”
Section: The Sensotube Architecturementioning
confidence: 99%
“…Από την εμφάνισή τους, τα ασύρματα δίκτυα αισθητήρων αποτελούνταu από ασύρματους κόμβους το υλικό των οποίων στηρίζεται αποκλειστικά στην αρχιτεκτονική που απεικονίζεται στην Εικόνα 1.1 [23,24]. Σύμφωνα με αυτήν την τυπική αρχιτεκτονική, η λειτουργία του ασύρματου κόμβου στηρίζεται σε έναν μικροελεγκτή (MCU: Microcontroller Unit) ο οποίος ελέγχει όλα τα απαραίτητα κυκλώματα για την διασύνδεση με αισθητήρες (sensors) και ενεργοποιητές (actuators), καθώς και για την ασύρματη δικτύωση.…”
Section: αδυναμίες και περιορισμοί στις τρέχουσες προσεγγίσεις σχεδιασμού κόμβων ασυρμάτων δικτύων αισθητήρωνunclassified