With dimensions of 40 x 60 x 10 mm, the M12 Oncore GPS receiver is built using Motorola's custom radio frequency integrated circuit (RFIC1504) and the ultra-low power, MoCORE-based MMC2003, a 32-bit RISC mC. The M12 Oncore GPS receiver offers one of the fastest times-to-first-fix (TTFF) in the industry, sub-second signal re-acquisition, enhanced urban canyon and foliage performance, simultaneous 12-satellite tracking capabilities and requires only 2.75V to 3.2V supply. The receiver includes support for inverse differential GPS that improves positioning at a central base station. This feature is for applications requiring high accuracy positioning, such as turn-by-turn navigation and in-vehicle tracking.