Luminary Micro, Inc. designs, markets, and sells ARM Cortex-M3-based microcontrollers. The company also provides a Stellaris family development kit that provides the hardware and software tools to develop and prototype embedded applications. It sells its products in the Eastern United States, the Western United States, Canada, Mexico, Caribbean, Central America, South America,... see more Europe, the Middle East, Asia, India, the Pacific Rim, Australia, New Zealand, and Africa. The company was founded in 2004 and is based in Austin, Texas.

As ARM's lead partner for Cortex-M3 based microcontrollers, 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.

In 2009, TI expands MCU portfolio with the acquisition of Luminary Micro, the market-leading supplier of ARM(R) Cortex(TM)-M3-based 32-bit MCUs. As a part of TI’s expansive microcontroller portfolio, customers will benefit from:
Assured continuity of supply with the backing of a global top-three semiconductor supplier with more than 75 years of industry experience;
Access to and support from a large direct global sales force, in addition to extensive global distribution access ;
Ability to pair your Stellaris MCU with the complete signal chain and power management solutions, support, and application know-how that only TI can offer The addition of our Stellaris MCUs combined with TI’s MSP430 and TMS320C2000? MCUs now gives you one MCU source for almost any application.

Luminary is product portfolio consists of ARM Cortex-M3-based microcontrollers/MCUs.