What Does the Market for MCUs Look Like? How will the market for MCUs evolve during the coming, say, five years? According to research company Grand View Research, a solid growth rate of a little more than 9% is highly probable. The compound annual growth rate (CAGR) of 9.2% is founded on three sub markets, namely the 8 bit, 16 bit and 32 bit microcontrollers. Research within North America (US and Canada) shows that these three markets will be growing more of less equally in the near future, thus keeping their respective shares intact: a quarter for 8 bit MCUs, a half for 16 bit MCUs and the remaining quarter for 32 bit MCUs. (Source: Grand View Research)