This slide shows the ST process discussed in the previous slides, starting with the core, the brain of the meters which is the microcontroller. ST is a leader in the field in ARM Cortex-M microcontrollers. As can be seen, starting on the left with the STM8, the 8-bit microcontroller family with an ST proprietary core, and progressing to full ARM implementation using the Cortex-M3 lower power L1 to the F1 at 72 MHz in the DSP optimized Cortex-M4 core, to the F3, and finally leading to the STM32F4. The applications extend from low end meters to complicated ones, and to concentrators. Additional information is available on the STMicroelectronics website, www.st.com, including a dedicated presentation on microcontrollers.