An 8051 microcontroller is an 8-bit Harvard architecture microcontroller and it consists of a CPU, RAM, ROM, I/O ports, timers, and serial communication ports all combined on one chip.
An on-chip crystal oscillator is integrated in the microcontroller having crystal frequency of 12 MHz. Let us now discuss the architecture of 8051 Microcontroller. In the following diagram, the system bus connects all the support devices to the CPU. The system bus consists of an 8-bit data bus, a 16-bit address bus and bus control signals.
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.
The 8051 Microcontroller is one of the most commonly used microcontrollers, designed by Intel in 1981. It is used in various fields like embedded systems, consumer electronics, robotics, remote controls, automotive industry, telecom applications, power tools etc. Here in this article we are going to study the architecture and applications of 8051 microcontroller. What is a Microcontroller ? A ...
In this tutorial, we will learn about 8051 microcontroller. Firstly, we will start with the history and introduction of 8051 and how it evolves as a famous microcontroller among engineering students. Secondly, we will discuss the architecture such as internal block diagram, registers, timers, counters, serial ports programming, types of interrupts and many other features. Furthermore, we will ...
The document provides information on the architecture of the 8051 microcontroller. It describes the main features of the 8051 including an 8-bit CPU, 4Kbytes of on-chip program memory, 128 bytes of on-chip data RAM, two 16-bit timers/counters, and 32 I/O lines. It details the core components of the 8051 architecture including the ALU, accumulator, instruction decoder, registers, memory, and ...