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Introduction to Microprocessors and Microcontrollers

Pankaj Maurya

Microprocessor:


A microprocessor is a clock-driven, multi-purpose register-based electronic device.

It reads instruction from memory and according to the given instruction, it processes the input data.

A microprocessor also has decision-making functionality in terms of changing the sequence of program execution.


Example: 8085 Microprocessor:


8085 Microprocessor:
8085 Microprocessor:

About 8085 microprocessors:

  1. It’s an 8-bit microprocessor.

  2. It’s a 40-pin IC.

  3. It can operate with a 3 MHz single-phase clock frequency and power supply of +5V.

  4. It has 16 address lines.

  5. Lower address buses(0 to 7) are multiplexed with data buses and hence the number of pins could be reduced.

Microcontroller:

A microprocessor along with memory and input/output peripheral devices when embedded on a single.


Microcontroller
Microcontroller

Here we’ll talk about 8051 Microcontrollers;


8051 Microcontrollers