The Atmel® | SMART™ SAM C20 is a microcontroller series optimized for industrial automation, appliances and other 5V applications using the 32-bit ARM® Cortex®-M0+ processor, and ranging from 32- to 64-pins with up to 256KB Flash and 32KB of SRAM. The SAM C20 devices operate at a maximum frequency of 48MHz and reach 2.46 Coremark/MHz.