What Is The Difference Between Microcontroller And Microprocessor Pdf

what is the difference between microcontroller and microprocessor pdf

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As computer systems become more and more ubiquitous in everyday items, the workings of those items will require some sort of digital controlling.

Differences in Microcomputer, Microprocessor and Microcontroller

The term microprocessor and microcontroller have always been confused with each other. Both of them have been designed for real time applications. They share many common features and at the same time they have significant differences. They are available in different versions starting from 6 pin to as high as 80 to pins or even higher depending on the features. A system designer has to add them externally to make them functional.

The first commercial microprocessor is 4-bit developed by Intel and was made available in Since then, it took a phenomenal success in its development and usage. Microprocessor is considered a product of combined developments in the fields of computer architecture and Integrated Circuit IC fabrication. It has made the concept of personal computing very feasible. The Microcontroller is often considered as a byproduct in the development of microprocessor. The fabrication process and programming technique which are responsible in the development of microprocessors has also lead to the development of microcontrollers. Until a decade ago, the microcontrollers are less popular in both the technical community and general public even though most of the consumer electronics like televisions, video games, video cassette recorders, telephones, elevators etc.


The main differences between microprocessors and microcontrollers are Microprocessor has one or two types of bit handling instruction and Microcontrollers have much time of bit handling system. Before moving further on differences lets have an overview of both Microprocessor and Microcontroller. A microprocessor is a controlling unit of a micro-computer, fabricated on a small chip capable of performing ALU Arithmetic Logical Unit operations and communicating with the other devices connected to it. Microprocessor consists of an ALU, register array, and a control unit. ALU performs arithmetical and logical operations on the data received from the memory or an input device. A microcontroller is a compact integrated circuit designed to govern a specific operation in an embedded system.

This may prove to be a limiting factor, depending on the application. They use external memory to provide program and data storage. Another difference is power. In that case, it is very possible a platform-based design approach will be preferred. Explained below is table for the difference between microprocessor and microcontroller. The more numeric-based the application, the more likely an MPU is required.

The Difference Between an Embedded Processor & a Microcontroller

Microcontrollers are designed for embedded applications, in contrast to the microprocessors used in personal computers or other general purpose applications consisting of various discrete chips. In modern terminology, a microcontroller is similar to, but less sophisticated than, a system on a chip SoC. SoC may include a microcontroller as one of its components, but usually integrates it with advanced peripherals like graphics processing unit GPU , Wi-Fi module, or one or more coprocessors. Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable medical devices, remote controls, office machines, appliances, power tools, toys and other embedded systems. Mixed signal microcontrollers are common, integrating analog components needed to control non-digital electronic systems.

A microcontroller is a chip optimized to control electronic devices. It is stored in a single integrated circuit which is dedicated to performing a particular task and execute one specific application. It is specially designed circuits for embedded applications and is widely used in automatically controlled electronic devices. In this Microprocessor Vs. Microcontroller tutorial, you will learn: What is Microcontroller?

Let us discuss Microcomputer, Microprocessor, and Microcontroller in this article and also to highlight their respective differences in between. A microcomputer can be defined as a small sized, inexpensive, and limited capability computer. It has the same architectural block structure that is present on a computer.

To understand in detail we have to take a look at the general architecture of a Microprocessor and Microcontroller, which is exactly what we are going to do in this article. Microcontrollers are generally used in projects and applications that require direct control by users. As it has all the components needed in its single chip, it does not need any external circuits to do its task so microcontrollers are heavily used in embedded systems and major microcontroller manufacturing companies are making them be used in the embedded market.


Paul B.


Microcontroller and Microprocessor both terms seem similar but there is a huge difference between these two ICs.

Christelle T.


KEY DIFFERENCES · Microprocessor consists of only a Central Processing Unit, whereas Micro Controller contains a CPU, Memory, I/O all.