![]() Usually clock speed of microprocessors are above 1GHz, while microcontroller’s clock speed ranges from 20MHz to 120MHz. Microprocessors have very high processing power when compared to microcontrollers. You cannot use it for anything else unless it is programmed to do so. While the microcontroller used in your washing machine is programmed to control operations of the washing machine. For example, you can use your computer for any applications like watching movie, web browsing, word processing, playing games etc. Microprocessors are intended for general purpose applications while microcontrollers are made for specific applications. ![]() The only way is to choose a different microcontroller. It is not possible to add additional RAM/ROM to majority of the microcontrollers available in the market. Microcontroller provides only some fixed amount of RAM or ROM. While a microcontroller can be said as a standalone device which has internal RAM, ROM and other peripherals like Analog to Digital Converter, Capture/Compare/ PWM modules, UART, I2C, SPI etc. ![]() ![]() This gives us the flexibility of choosing peripherals, RAM, ROM etc. It requires other peripherals connected externally, like RAM, ROM, input output devices etc. Microprocessor incorporates core functions of a computer’s central processing unit (CPU). Let’s see the key differences between them.ĭifference between Microcontroller and Microprocessor Difference in Architecture ![]() I recommend you to read our articles What is a Microcontroller ? and What is a Microprocessor ? to understand more about microcontroller and microprocessor.īoth microcontroller and microprocessor are programmable multipurpose silicon chip, clock driven, register based, accepts binary data as input and provides output after processing it as per the instructions stored in the memory. The term microprocessor and microcontroller can be confusing for those who are new to this field.
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