The difference between MCU and MPU

MCU refers to the microcontroller, MPU refers to the microprocessor. MCU A collection of FLASH, RAM and some foreign devices. MPU FLAS H and RAM need to be built by the designer, of course, the MCU can also be expanded. The circuit design of MPU is more complex than that of MCU. MCU general Using on-chip FLASH to store and execute program code, the MPU stores the code in external FLASH and transfers the code to RAM when powered on. As a result, the MCU starts faster. The MCU can also run code in RAM, but the internal RAM capacity is small, and the speed of using external extended RAM is slower than that of using internal RAM. Main frequency of the MPU Relatively high, the external memory is generally DDR3,DDR4

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