Title :
A resonant-clock 200MHz ARM926EJ-STM microcontroller
Author :
Ishii, Alexander T. ; Kao, Jerry C. ; Sathe, Visvesh S. ; Papaefthymiou, Marios C.
Author_Institution :
Cyclos Semicond., Berkeley, CA, USA
Abstract :
An ARM926EJ-Strade microcontroller with a fully resonant clock distribution network and 16 KB data and instruction caches has been implemented in 130 nm bulk silicon. Workloads execute successfully across process and temperature corners, and at room temperature, typical-process chips run at clock speeds up to 200 MHz with 1.2 V supply. At resonance, the microcontroller core dissipates 0.23 mW/MHz, recovering 85% of the energy in its clock distribution network. Total power savings range from 20% to 35%, depending on application workload and computation profile.
Keywords :
clocks; low-power electronics; microcontrollers; ARM926EJ-S microcontroller; application workload; computation profile; efficiency 20 percent to 35 percent; efficiency 85 percent; energy recovery; frequency 200 MHz; fully-resonant clock distribution network; instruction cache; power 0.23 mW; power saving; process chip; room temperature; size 130 nm; voltage 1.2 V; Clocks; Computer applications; Flip-flops; Frequency; Inductors; Logic; Microcontrollers; Network-on-a-chip; Resonance; Temperature; embedded computing; energy-efficient processors; mobile computing;
Conference_Titel :
ESSCIRC, 2009. ESSCIRC '09. Proceedings of
Conference_Location :
Athens
Print_ISBN :
978-1-4244-4354-3
DOI :
10.1109/ESSCIRC.2009.5325961
