Features of 8051 microcontroller pdf

Please forward this error screen to 184. The first microprocessor 4004 was invented by Intel Corporation. 8085 and 8086 microprocessors were also invented by Intel. In features of 8051 microcontroller pdf, Intel introduced an 8-bit microcontroller called the 8051.


When it became widely popular, Intel allowed other manufacturers to make and market different flavors of 8051 with its code compatible with 8051. It means that if you write your program for one flavor of 8051, it will run on other flavors too, regardless of the manufacturer. This has led to several versions with different speeds and amounts of on-chip RAM.

8052 has all the standard features of the 8051 microcontroller as well as an extra 128 bytes of RAM and an extra timer. It also has 8K bytes of on-chip program ROM instead of 4K bytes. It is another member of the 8051 family. This chip is often referred to as a ROM-less 8051, since it has 0K byte of on-chip ROM.

You must add external ROM to it in order to use it, which contains the program to be fetched and executed. This program can be as large as 64K bytes.

But in the process of adding external ROM to the 8031, it lost 2 ports out of 4 ports. The following table compares the features available in 8051, 8052, and 8031. 8051 may also have a number of special features such as UARTs, ADC, Op-amp, etc. The latest reviewed version was checked on 3 November 2017.

There are 2 pending changes awaiting review. The Intel 8051 microcontroller is one of the most popular general purpose microcontrollers in use today. The success of the Intel 8051 spawned a number of clones, which are collectively referred to as the MCS-51 family of microcontrollers, which includes chips from vendors such as Atmel, Philips, Infineon, and Texas Instruments.

The Intel 8051 is an 8-bit microcontroller which means that most available operations are limited to 8 bits. There are 3 basic “sizes” of the 8051: Short, Standard, and Extended.