INTRODUCTION TO THE WORLD OF MICROCONTROLLERS | 8051 FAMILY

In my earlier posts I've given introduction to tha embedded systems,then moved on to the what are  microcontrollers and  diffrence between microcontrollers and microprocessors 
In this post i'll be introducing you to the world of microcontrollers and the most common 8051 family.
There are various 8 bit and even more (16 or 32 bit)  microcontrollers available,the most common is 8-bit microcontrollers and the firms manufacturing them are :
Motorola's 6811  , Intel 8051 , Microchip's pic.

Before CHOOSING a microcontroller for an embedded system,the need must be noticed and accordingly microcontrollers  configuration is choosed :

NOW coming on 8051 microcontrollers. They are the most common among microcontrollers family. A large number of firms manufactures it.
some among them are :
Intel,Atmel,Philips,amd,Matra,dallas semicontuductors,Siemens


Intel introduced its 8051 microcontrollers known by name MCS 51 in 1981

It is a8 bit microcontroller that means 8 bits of data can be processed at a time.

CONFIGURATION/FEATURES OF 8051:
1) 128 BYTES OF RAM
2) 4 KB ROM
3) TWO TIMERS
4) 4 I/O PORTS
5) 6 INTEREPPT SOURCE
6) ONE SERIAL PORT

                                       BLOCK DIAGRAM OF 8051 MICROCONTROLLERS

                                                                       8051  family

continue reading other family members