The Stellaris microcontroller, based on the ARM Cortex-M3 and M3S cores, is a 32-bit single-core processor with an operating frequency of 80 MHz. It features 128 KB of internal Flash memory, organized as 128 K x 8 bits. The device has a 100-pin LQFP (Lead-Free Quad Flat Package) package size, measuring 14x14 mm.