A MCU platform with embedded FRAM achieving 350nA current consumption in real-time clock mode with full state retention and 6.5µs system wakeup time

Author

Baumann, A. ; Jung, Moongon ; Huber, Korbinian ; Arnold, Martin ; Sichert, C. ; Schauer, S. ; Brederlow, Ralf

Author_Institution

Texas Instrum. Deutschland GmbH, Freising, Germany

fYear

2013

fDate

12-14 June 2013

Abstract

A novel ultra-low-power MCU is presented, which is optimized for both lowest stand-by and active power consumption. By modifying technology, adopting critical blocks in circuit design, and tailoring the system architecture the MCU achieves an overall stand-by current consumption of 350nA. This number includes the real time clock functionality, the 32kHz crystal oscillator, and the supply voltage supervision. Fast wake-up from stand-by or sleep mode is achieved through analog pre-charge current sources within 6.5us.

Keywords

crystal oscillators; embedded systems; flash memories; integrated circuit design; microcontrollers; power consumption; power supplies to apparatus; random-access storage; active power consumption; analog precharge current sources; circuit design; critical blocks; crystal oscillator; current 350 nA; current consumption; embedded FRAM; frequency 32 kHz; full state retention; real time clock functionality; real-time clock mode; supply voltage supervision; system architecture; system wakeup time; time 6.5 mus; ultra-low-power MCU; Clocks; Ferroelectric films; Logic gates; Nonvolatile memory; Power demand; Random access memory; Real-time systems;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits (VLSIC), 2013 Symposium on

Conference_Location

Kyoto

Print_ISBN

978-1-4673-5531-5

Type

conf

Filename

6578662