32 Bit Microcontrollers

32-Bit Microcontrollers (MCU) contain a 32-bit wide data bus. They are the brain of an embedded system, a computer scaled down to a single compact chip for managing a specific operation, and are highly integrated single chips with a processor, memory, I/O peripherals, timer/counter, and communication ports all contained within. The most important criteria in selecting a microcontroller for a particular application is the data bus width expressed in bits. Performance of a MCU increases with increases in the data bus width.