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8-bit microcontroller-What is it? | Learn Electronics

time 2022-12-27

Publisher: hqt


What is an 8-bit microcontroller?

Microcontrollers are small computer chips that can be used to control electronic devices. The microcontroller is programmed to perform certain tasks, such as controlling the flow of electricity to an appliance or controlling the speed of a motor. In addition to their use in consumer electronics, microcontrollers are also used in industrial and automotive applications.

Difference: Microprocessor VS Microcontroller

Microcontrollers are often used when cost or space is at a premium. In contrast to the microprocessor which uses memory external to the chip itself, the microcontroller contains all of its program memory and data memory on the chip. Microcontrollers are often preferred over microprocessors for applications where power consumption must be kept low, which may allow battery operation.

A microprocessor is a single chip that contains all the components of a computer on a single chip. It is made up of millions of transistors and other components. A microcontroller, on the other hand, is similar to a microprocessor but does not contain all the components of a computer on a single chip. Instead, it is made up of multiple chips and can be programmed using software or hardware such as an FPGA or CPLD.

Microcontrollers are used in embedded systems where they can interact directly with things like motors and sensors. Microprocessors are used in personal computers and other devices that do not need direct interaction with physical objects.

What is an 8-bit microcontroller?

The 8-bit microcontroller is a type of microprocessor that has been around since the 1970s. It was first developed by Intel Corporation (now known as Intel Incorporated) and was used in the first personal computers produced by IBM Corporation (also known as IBM). Today, 8-bit microcontrollers are still used in many consumer products such as video game consoles and appliances such as televisions and stereos.

An 8-bit microcontroller is a microcontroller that has an 8-bit central processing unit (CPU). The CPU is the “brain” of the microcontroller and is responsible for executing instructions and performing calculations. 8-bit microcontrollers are typically smaller and less expensive than their 32-bit or 64-bit counterparts, and they are often used in applications that do not require a lot of processing power or memory.

8-bit microcontroller

Difference: 8-bit microcontrollers VS 16-bit microcontrollers

8-bit microcontrollers are the most common microcontrollers used in hobbyist and small-scale projects. They are usually cheaper than 16-bit microcontrollers, but they also have less processing power, RAM and ROM compared to 16-bit microcontrollers.

The main difference between 8-bit microcontrollers and 16-bit microcontrollers is that 8-bit microcontrollers are simpler, cheaper, and easier to use. They also have a smaller size which makes them ideal for small devices such as watches and remote controls. On the other hand, 16-bit microcontrollers have more features than 8-bit microcontrollers but they are larger in size.

What are The Advantages of 8-bit microcontrollers?

The 8-bit microcontroller is one of the most popular types of microcontroller. It is similar to 16-bit and 32-bit microcontrollers but has a few fewer pins and less memory.

8-bit microcontrollers are used for various purposes such as industrial automation, medical devices, embedded systems, etc. They are also used in many electronic devices like microwave ovens, watches, etc. In addition to that, they are used in many other applications like digital cameras and video game consoles.

There are many advantages of using 8-bit MCUs over other types of MCUs like 16-bit, 32-bit, or 64-bit MCUs. Some of them are discussed below:

1. Low power consumption: 

An 8-bit microcontroller consumes less power than a 16-bit or 32-bit microcontroller. This is because the number of transistors used in the architecture of 8-bit MCUs is less as compared to their larger counterparts.

2. Cost-effective:

The cost of an 8-bit microcontroller is much less than that of a 16-bit or 32-bit microcontroller, as they use fewer components and transistors in their architecture.

3. Simple programming:

An 8-bit microcontroller has simple instruction sets and thus can be programmed easily without any complications.

4. Smaller size: 

The size of an 8-bit microprocessor is smaller than that of its larger counterparts (16 bits, 32 bits). Hence, it occupies less space on a printed circuit board (PCB).

5. Easy to program:

Programming an 8-bit microcontroller is easy as compared to other types of microcontrollers because there is no need for complex instructions or high-level languages, which makes it easier for even beginners to learn how to program them. Also, since there is no need for additional hardware, users can save money on additional components needed by other types of controllers when programming them.

6. High level of integration:

The 8-bit microcontroller is highly integrated, which means that it has a number of functions built into the chip, such as timers and USARTs. This makes the microcontroller easy to use and reduces the need for external components like EEPROMs, display drivers, etc.

What are The Disadvantages of 8-bit microcontrollers?

Some common applications for 8-bit microcontrollers include control systems, automotive systems, and consumer products. They are often used in conjunction with other devices, such as sensors and actuators, to control and monitor various systems.

The 8-bit microcontroller is the most common type of microcontroller used in embedded systems. It is a very powerful device, but it has its limitations.

1. The 8-bit microcontrollers have a limited program size and memory. It can be easily overcome by using the external RAM but it is not required for most applications.

2. The 8-bit microcontrollers have limited analog input pins and output pins. This can be overcome by using an external ADC (Analog to Digital Converter) or DAC (Digital to Analog Converter).

3. The 8-bit microcontrollers do not support multiplexing on their I/O ports, so it is difficult to read or write on multiple pins at once. This can be overcome by using an external multiplexer IC such as 74HC4067 or 74HC4060 which has 4 input lines and 4 output lines simultaneously controlled by one line from the microcontroller.

What are the applications of 8-bit microcontrollers?

8-bit microcontrollers are used in various applications. They have been designed for use in a wide range of applications and can be used to control small and medium devices. The following are some of the common applications of 8-bit microcontrollers:

1. Home appliances like microwave ovens, washing machines, refrigerators, etc.,

2. Industrial automation equipment and machines like bathroom fans, industrial robots, security systems, etc.

3. Consumer electronics such as microwaves, DVD players, audio players, etc.

4. Medical devices like pacemakers and insulin pumps etc.

For example, 8-bit microcontrollers are often used in industrial control systems because they have enough computing power to implement complex algorithms while also having enough memory to store large amounts of data. This combination gives 8-bit microcontrollers an edge over simpler devices like comparators and limits switches which can only perform very basic calculations.

8-bit microcontrollers are also used in consumer electronics such as cell phones and video game consoles because they provide a balance between cost and performance that is suitable for many applications.

What are the types of 8-bit microcontrollers?

There are different types of 8-bit microcontrollers available on the market today:

8051/8052 series (MCUs) – This is an 8-bit MCU with limited features such as Timers & Support Products Precision NE555P, serial communication interfaces, and analog input/output pins. The main advantage of this MCU is its low cost compared to other types of MCUs available in the market today. It has a lower processing speed compared to other MCUs but it is still faster than 7400 series ICs (integrated circuits).

PIC16Cxx series – This is another type of 8-bit microcontroller that has more features than the 80×5 series. It has timer/counter modules, comparators, and analog-to-digital converters which can be used for measuring temperature, pressure, or light intensity. The PIC16Cxx series also offers better performance compared to 80×5 series MCUs because it operates at a higher clock frequency rate.

PIC18Cxx series – This is one of the most popular 8-bit microcontrollers used today because it comes with many advanced features such as timers, serial communication interfaces, and analog input/output pins that can be used in various applications like remote control systems, home appliances, industrial machines, etc.


An 8-bit microcontroller is a type of computer chip that controls electronics (such as computers) in various ways. The name comes from the fact that the chip contains eight bits of data storage, which is enough for 256 different values (0 through 255). This limitation is what makes 8-bit microcontrollers inexpensive to build and easy to program, but also limits their capabilities compared to more powerful processors like PCs or smartphones.

Are you searching for the right 8-bit microcontroller, here the company EASYIEE can provide many types of them for you. The company has a good reputation in this field, and it is always updating its products to meet the market demand.