Luminary Micro is now Texas Instruments Luminary Micro delivers the world's first Cortex-M3 based products with their Stellaris™ MCUs. These MCUs bring high-performance computing to cost-sensitive embedded microcontroller applications at a cost equivalent to legacy 8- and 16-bit devices. Luminary Micro's use of ARM technology, with its breadth of instruction-set compatible performance, provides the potential to eliminate costly architectural upgrades and tools changes.