tell something theory about pic microcontroller?

Question

INFORMATION ABOUT pic 16F84A

Answer 1

The 16F84A is a more capable version of the 16F84 and the A on the end just means that it can run at higher speed.

In common with most other PIC microcontrollers it uses ICSP (In Circuit Serial Programming) to load in a program to the flash memory.

The 16F84, although one of the most popular of the PIC series (it's commonly used by hobbyists), is actually getting a bit too old to use in fact there are cheaper parts that have more internal peripherals (the 16F84 has one internal peripheral - Timer 0).

For instance the 16F628 costs less and has 4x the ram, 2x the program memory, three timers, a USART, two comparators and a Capture Compare PWM module.

In spite of this the 16F84 is still used because of the number of projects available on the web and its great strength is that the memory is re-programmable so you can create software USARTs and simulate other modules in software.

And that explains its popularity.

John Main

Answer 2

Data sheet
ww1.microchip.com/downloads/en/devicedoc/35007b.pdf

It uses flash memory instead of Electronically Erasable Programmable Read-Only Memory (EEPROM). And is the update to the PIC16C84, with double the bytes of RAM onboard and is in the 14-bit series.

Answer 3

THE BASE OF PIC TECHNOLOGY IS THE IT REQUIRES LESS EFFORT IN CREATING A COMPLICATED MICROCONTROLLER.
THE PIC(PROGRAMMABLE INTEGRATED CHIP)WORKS WITH A PROGRAMME WRITTEN IN ITS MEMORY.THE SOFTWARE CAN BE WRITTEN FROM A COMPUTER PROGRAM TO THE PIC.
I WONT GO TOO MUCH IN DETAILS ,BUT I CAN SAY THAT IN ROBOTICS THIS IS THE PRINCIPLE TECHNOLOGY USED.
FOR DETAILS ON 16F84A REFER TO 1ST ANSWER LINK