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Types of Microcontrollers

on Tue Sep 04, 2018 1:34 pm
Types of Microcontrollers



Bits

   8 bits    
microcontroller executes logic & arithmetic operations. Examples of 8 bits micro controller is    Intel 8031/8051.

16 bits        
microcontroller executes with greater accuracy and performance in contrast to 8-bit. Example of 16 bit microcontroller is Intel 8096.

32 bits    
  microcontroller is employed mainly in automatically controlled appliances such as office machines, implantable medical appliances, etc. It requires 32-bit instructions to carry out any logical or arithmetic function.



Memory Devices

Embedded memory microcontroller
When an embedded system has a microcontroller unit that has all the functional blocks available on a chip is called an embedded microcontroller. For example, 8051 having program & data memory, I/O ports, serial communication, counters and timers and interrupts on the chip is an embedded microcontroller.

External Memory Microcontroller
When an embedded system has a microcontroller unit that has not all the functional blocks available on a chip is called an external memory microcontroller. For example, 8031 has no program memory on the chip is an external memory microcontroller.


Memory Architecture

Harvard Memory Architecture Microcontroller

The point when a microcontroller unit has a dissimilar memory address space for the program and data memory, the microcontroller has Harvard memory architecture in the processor.


Princeton Memory Architecture Microcontroller

The point when a microcontroller has a common memory address for the program memory and data memory, the microcontroller has Princeton memory architecture in the processor.

4 Types of Microcontrollers

8051 Microcontroller:




The most universally employed set of microcontrollers come from the 8051 family. 8051 Microcontrollers persist to be an ideal choice for a huge group of hobbyists and experts. In the course of 8051, the humankind became eyewitness to the most ground-breaking set of microcontrollers. The original 8051 microcontroller was initially invented by Intel. The two other members of this 8051 family are-

   8052 – This microcontroller has 3 timers & 256 bytes of RAM. Additionally it has all the features of the traditional 8051 microcontroller. 8051 microcontroller is a subset of 8052 microcontroller.
   8031 – This microcontroller is ROM less, other than that it has all the features of a traditional 8051 microcontroller. For execution an external ROM of size 64K bytes can be added to its chip.

8051 microcontroller brings into play 2 different sorts of memory such as- NV-RAM, UV-EPROM and Flash.





PIC Microcontroller:





Peripheral Interface Controller (PIC) provided by Micro-chip Technology to categorize its solitary chip microcontrollers. These appliances have been extremely successful in 8 bit micro-controllers. The foremost cause behind it is that Micro-chip Technology has been constantly upgrading the appliance architecture and included much required peripherals to the micro-controller to go well with clientele necessities. PIC microcontrollers are very popular amid hobbyists and industrialists; this is only cause of wide availability, low cost, large user base & serial programming capability.



AVR Microcontroller:





AVR also known as Advanced Virtual RISC, is a customized Harvard architecture 8 bit RISC solitary chip micro-controller. It was invented in the year 1966 by Atmel. Harvard architecture signifies that program & data are amassed in different spaces and are used simultaneously. It was one of the foremost micro-controller families to employ on-chip flash memory basically for storing program, as contrasting to one time programmable EPROM, EEPROM or ROM, utilized by other micro-controllers at the same time. Flash memory is a non-volatile (constant on power down) programmable memory.


AVR Microcontrollers are classified into three types:

  TinyAVR
          Less memory, small size, suitable only for simpler applications

   MegaAVR
         These are the most popular ones having good amount of memory (up to 256 KB), higher number of inbuilt peripherals and suitable for moderate to complex  
          application

  XmegaAVR
         Used commercially for complex applications, which require large program memory and high speed


ARM Microcontroller:



ARM is the name of a company that designs micro-processors architecture. It is also engaged in licensing them to the producers who fabricate genuine chips. In actuality ARM is a 32 bit genuine RISC architecture. It was initially developed in the year 1980 by Acorn Computers Ltd. This ARM base microprocessor does not have on-board flash memory. ARM is particularly designed for micro-controller devices, it is simple to be trained and make use of, however powerful enough for the most challenging embedded devices.
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Re: Types of Microcontrollers

on Mon Sep 17, 2018 1:57 pm
Arduino is what type of micrcontroller?
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Re: Types of Microcontrollers

on Mon Sep 17, 2018 1:59 pm
Is it true that 8051 microcontroller still use a assembly language in programing ?
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Re: Types of Microcontrollers

on Mon Sep 17, 2018 2:18 pm
Yes 8051 using assembly language but using mnemonics can guide us in programming
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Re: Types of Microcontrollers

on Mon Sep 17, 2018 2:22 pm
coleen wrote:Arduino is what type of micrcontroller?

Most Arduino boards consist of an Atmel 8-bit AVR microcontroller (ATmega8, ATmega168, ATmega328, ATmega1280, ATmega2560) with varying amounts of flash memory, pins, and features.Meaning Arduino is belong to AVR
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:00 am
In terms of clock how many mgHz does the AVR microcontroller have?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:02 am
Does Laptop have a microcontroller inside?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:06 am
How about the 64 bit what is the difference of it in 32 bit?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:08 am
Is there any type of microcontroller that has a 64 Bit?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:09 am
Mayan wrote:Is there any type of microcontroller that has a 64 Bit?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:10 am
Admin do you know what is the latest version of arduino ?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:11 am
What are the features of PIC microcontroller?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:15 am
Which is better? Harvard Memory or Princeton?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:15 am
What is NV-RAM?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:17 am
What is UV-EPROM?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:22 am
What is the disadvantage of Xmega AVR?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:24 am
What is Flash Memory?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:26 am
What are the differences between NV-RAM, UV_EPROM and Flash?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:32 am
What is RISC architecture?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:34 am
Is there any existing device now that uses PIC microcontroller?
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:36 am
I am also into ARDUINO microcontrollers and I,ve heard that there arduinos that is washable is that true ??
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Re: Types of Microcontrollers

on Fri Sep 21, 2018 8:38 am
Miley wrote:I am also into ARDUINO microcontrollers and I,ve heard that there arduinos that is washable is that true ??

Acrobats sometimes use a microcontroller in their costumes so that at night it will grow in the dark
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