Microcontrollers - 8051 Architecture

-

 8051 microcontroller is designed by Intel in 1981. It is an 8-bit microcontroller. It is built with 40 pins DIP (dual inline package), 4kb of ROM storage and 128 bytes of RAM storage, 2 16-bit timers. It consists of are four parallel 8-bit ports, which are programmable as well as addressable as per the requirement. 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. All other devices like program memory, ports, data memory, serial interface, interrupt control, timers, and the CPU are all interfaced together through the system bus.

8051 Architecture

Comments

Post a Comment

Thank you for visiting😊

Popular posts from this blog

Difference between Inverters VSI vs CSI

-
  Difference between Inverters VSI vs CSI VSI (Voltage Source Inverter) CSI (Current Source Inverter) 1. In voltage source inverter input voltage is kept constant. 1. In current source inverter input current is kept constant. 2. VSI is fed from a DC voltage source having small or negligible impedance. 2. CSI is fed with adjustable current source from a DC voltage source of high impedance. 3. DC source in parallel with large capacitor. 3. VSI can be converted into CSI, By connecting large series inductance. 4.Input voltage is maintained constant. 4. The input current is constant but adjustable. 5. An output voltage is independent of load. 5. An output current is independent of load 6. The waveform of the load current as well as its magnitude depends upon the nature of load impedance. 6. The magnitude of output voltage and its waveform depends upon the nature of the load impedance. 7. VSI has slow response than CSI.  7. CSI has fast response than VSI. 8. VSI requires feedback diodes 8. T
Read more

why we do not store Ac in battery

-
We do not store AC (alternating current) in batteries because batteries are designed to store and release direct current (DC) electricity. AC electricity has a constantly changing voltage and direction, while DC electricity has a constant voltage and direction. Batteries are made up of cells that contain two electrodes (positive and negative) and an electrolyte solution. When a device is connected to a battery, the electrons flow from the negative electrode, through the device, and back to the positive electrode. This flow of electrons creates a direct current. If AC electricity were stored in a battery, the constantly changing voltage and direction would cause the electrons to flow in different directions and at different speeds, which would damage the battery and potentially cause it to malfunction or fail.
Read more