The ARM Cortex-M3 Stellaris family of microcontrollers features the ARM Cortex-M3 processor. The ARM Cortex-M3S 2000 is a specific member of this family, offering a 32-bit single-core architecture operating at 25MHz speed. It includes 64KB (64K x 8) of FLASH memory and is packaged in a 100-LQFP (14x14) package.