Ultra low power microcontroller extends battery life

A Norwegian startup is pushing the limits of low power in microcontrollers, cutting power by a factor of four over even 8bit devices. Energy Micro has developed the EFM32 low power 32bit microcontroller based on the ARM Cortex-M3 architecture with low power clocks and peripherals that consumes less than 180µA per MHz while executing real life code from Flash memory and the lowest active mode