The instruction in the microprocessor is bits or bytes whereas in the microcontroller instruction are both bits and bytes addressable.The microprocessor has zero status flag, whereas microcontroller has no zero flags.The both ic’s are available in numerous type of packages starting from 6 pins to a large number of pins (Depends upon its features). These microcontrollers are not the same as. The difference between Microprocessor and Microcontroller can not be simply distinguished by just looking at them. Microprocessor mainly used in personal computers and microcontroller mainly used in a washing machine, MP3 player. Controllers that once handled large mechanical systems now work inside smaller digital and mechanical devices.The microcontrollers have more registers, which makes the program simpler to write than the microprocessor due to fewer registers.
Compared to the microcontroller, the clock speed of the microprocessor is quite high. Microprocessor and Microcontroller Comparison Chart The general processing speed of microprocessors is 1 GHz or above. Another difference is that the microcontroller generally has to handle instantaneous tasks whereas on the contrary the micro-processors in a computer system perhaps will not handle an instantaneous task at all times.
Most of the microprocessors do not have power saving features while the microcontroller has idle mode and power saving mode this helps to reduce power consumption even further.Due to external components, the entire power consumption is high in the case of a microprocessor hence, it is not suitable to use with devices running on stored power like batteries and vice versa because entire power consumption is less in the microcontroller. Key Difference Between Microprocessor and Microcontroller: These are the following key difference between microprocessor and microcontroller: A microprocessor consists of a Central Processing Unit only, whereas a Micro Controller contains a CPU, Memory, I/O all integrated into one chip.In the microprocessor memory and components have to be connected externally thus the circuit becomes large whereas memory and components have to be connected internally thus the circuit becomes small.The microprocessor cannot be used in a compact system and hence inefficient and the microprocessor can be used in a compact system and hence it is an efficient technique.