The clock speed of the Microprocessor is quite high as compared to the microcontroller.
They need high amount of resources like RAM, ROM, I/O ports etc. In such cases the relationship between input and output is not defined. Microprocessors find applications where tasks are unspecific like developing software, games, websites, photo editing, creating documents etc. This in turn reduces the size and the cost. Since the applications are very specific, they need small resources like RAM, ROM, I/O ports etc and hence can be embedded on a single chip.
For example, keyboards, mouse, washing machine, digicam, pendrive, remote, microwave, cars, bikes, telephone, mobiles, watches, etc. Depending on the input, some processing needs to be done and output is delivered. Specific means applications where the relationship of input and output is defined. Microcontrollers are designed to perform specific tasks.
Some manufacturers are ATMEL, Microchip, TI, Freescale, Philips, Motorola etc. Today different manufacturers produce microcontrollers with a wide range of features available in different versions. At times it is also termed as a mini computer or a computer on a single chip. A microcontroller has a CPU, in addition with a fixed amount of RAM, ROM and other peripherals all embedded on a single chip. Applications of microprocessor include Desktop PC’s, Laptops, notepads etc.īut this is not the case with Microcontrollers.
A system designer has to add them externally to make them functional. These microprocessors don’t have RAM, ROM, and other peripherals on the chip. only the processing powers such as Intel’s Pentium 1,2,3,4, core 2 duo, i3, i5 etc. They are available in different versions starting from 6 pin to as high as 80 to 100 pins or even higher depending on the features.ĭifference between microprocessor and microcontrollerĪ microprocessor is an IC which has only the CPU inside them, i.e. Both the IC’s – i.e., the microprocessor and microcontroller – cannot be distinguished by looking at them. They share many common features and at the same time they have significant differences. Both of them have been designed for real time applications. The term microprocessor and microcontroller have always been confused with each other.
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