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Chapter 01
Page 2
The difference between a Micro-Processor and a Micro-Controller
| S.No. | Micro-Processor | Micro-Controller |
|---|---|---|
| 1 | Micro-Processor is like a king, it needs a lot of assisting components | Micro-Controller is like "One Men Army", its self-contained. |
| 2 | Must have external memory for program storage: usually eepROMs are used. | Contains inbuilt Flash memory to store programs. (Flash memory is a non-volatile computer storage chip that can be electrically erased and reprogrammed. Its a special type of EEPROM: Electrically Erasable Programmable Read-Only Memory) |
| 3 | An external clock/crystal oscillator circuit is required (A clock generator is a circuit that produces a timing signal known timing signal for use in synchronizing a circuit’s operation) |
Modern Micro-Controllers have inbuilt clock generator, but to operate at high speed external clock source can be optionally used) |
| 4 | - | We can say that, every Micro-Controller contains an inbuilt Micro-Processor |
A Picture is worth 100 words: 1-Micro-controller is worth 1-Mirco-Processor + 100 components (inside the same chip) :-
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