Atmel extends its One-stop Shop for ARM-based micros with the SAM3S, a Cortex-M3 Flash MCU series that integrates features to simplify PCB design and reduce power consumption down to 2.3 mW at 1 MHz operation. Inspired by the best-selling SAM7S series, the SAM3S provides the ideal migration path to a more powerful and feature-rich MCU, while preserving hardware and software investments.