What are the main features of 8051 microcontroller?

Features of 8051 Microcontroller

• 4KB bytes on-chip program memory (ROM)
• 128 bytes on-chip data memory (RAM)
• Four register banks.
• 128 user defined software flags.
• 8-bit bidirectional data bus.
• 16-bit unidirectional address bus.
• 32 general purpose registers each of 8-bit.
• 16 bit Timers (usually 2, but may have more or less)

What are the features of microcontroller?

A micro-controller is a single integrated circuit, commonly with the following features: central processing unit – ranging from small and simple 4-bit processors to complex 32-bit or 64-bit processors. volatile memory (RAM) for data storage. ROM, EPROM, EEPROM or Flash memory for program and operating parameter storage.

What are 4 key features of microcontrollers?

Core microcontroller components include:

• CPU (Central Processing Unit).
• RAM (Random Access Memory).
• ROM (Read-Only Memory).
• Internal Oscillator (the main timer of the MCU).
• I/O (Input/Output) Ports.
• Peripheral Controller Chips (other optional accessories and components).

What is the 8051 features available in ROM?

ROM: 8051 has 4 KB of on-chip ROM (Program Memory). I/O Ports: 8051 has four 8 – bit Input / Output Ports which are bit addressable and bidirectional. Timers / Counters: 8051 has two 16 – bit Timers / Counters. Serial Port: 8051 supports full duplex UART Communication.

What are the characteristics of embedded system?

Characteristics of an Embedded System

• Requires real time performance.
• It should have high availability and reliability.
• Developed around a real-time operating system.
• Usually, have easy and a diskless operation, ROM boot.
• Designed for one specific task.

What are the main features of 8085 microprocessor?

Features of 8085 Microprocessor:

• 1.It is an 8-bit microprocessor i.e. it can accept, process, or provide 8-bit data simultaneously.
• 2.It operates on a single +5V power supply connected at Vcc; power supply ground is connected to Vss.
• 3.It operates on clock cycle with 50% duty cycle.
• 4.It has on chip clock generator.

What are the applications of microcontroller?

Microcontroller Applications:

• Light sensing & controlling devices.
• Temperature sensing and controlling devices.
• Fire detection & safety devices.
• Industrial instrumentation devices.
• Process control devices.

What is the memory structure of 8051?

The internal data memory of 8051 is divided into two groups. These are a set of eight registers, and a scratch pad memory. These eight registers are R0 to R7. The address range 00H to 07H is used to access the registers, and the rest are scratch pad memory….Data memory structure of 8051 Microcontroller.

Address Range	Register Bank
18H to 1FH	Register Bank 3

What are the applications of 8051?

Applications of 8051 Microcontroller

• Light sensing and controlling devices.
• Temperature sensing and controlling devices.
• Fire detections and safety devices.
• Automobile applications.
• Defense applications.

What are the three main characteristics of embedded system?

Embedded systems vary in complexity but, generally, consist of three main elements:

• Hardware. The hardware of embedded systems is based around microprocessors and microcontrollers.
• Software and firmware. Software for embedded systems can vary in complexity.
• Real-time operating system.

What do you need to know about the 8051 microcontroller?

In the previous 8051 Microcontroller Tutorials, we have seen some basics of 8051 Microcontroller and also the Pin Diagram and Pin Description of 8051 Microcontroller. In this tutorial, we will see the 8051 Microcontroller Architecture and the different components in the architecture.

What are the interrupts in the 8051 architecture?

There are five interrupts present in the architecture of 8051 known as INT0, TF0, INT1, TF1, R1/T1 All these interrupts are used to pause the main program. TF0 and TF1 are timer interrupts while INT0 and INT1 are external interrupts.

What kind of package does the 8051 come in?

8051 comes in a variety of packages but the most common package is a DIP (dual inline package). However, it is also available in other surface mount packaging like 44 – Lead TQFP (Thin Quad Flat Package) and 44 – Lead PLCC (Plastic Leaded Chip Carrier).

Which is better 8051 or 8052 family members?

Comparison between 8051 Family Members Feature 8051 8052 8031 ROM (bytes) 4K 8K 0K RAM (bytes) 128 256 128 Timers 2 3 2 I/O pins 32 32 32