Advantages of at89c51 microcontroller over 8051 microcontroller?

Answer 1

the 8051 microcontrroller is the name doesnt matter easy or not....but the maiin and imp diff between both is at89s51 represents the 8051 chip no....along with the name of company i.e atmel, so all n all both are same thing ......

89c51 have RISC architecture and contains less no of opcodes which are easy for programming. so iti is preferred than 8051.

Answer 2

The instructions used by Atmel 89CXX and 89CXXXX are the same or subset of 8051 microcontrollers.

Some of the attractions in going for these microcontrollers include:

• Fully static operation,
• flash program memory,
• less pin count and
• precision analog comparator ( in case of 89C20510)

Due to many similar features in the architecture and instruction and instruction set as that of 8051, it becomes possible for the 8051 designer to directly start using 89CXX and 89C20XX microcontrollers without any more efforts in learning these microcontrollers.

Answer 3

- low power,high perforance cmos 8-bit micro controller with 4k bytes of flash programmable and erasable read only memory

-three 16-bit timer/counters

-nine interrupt sources

-spl serial interface

-dual data pointer

-4v to 6v operating range

Answer 4

at89s52 is in system programmable whereas 8051 is not

Answer 5

For the microcontroller is to be used for small projects ie. by using only less number of ports , 2051 is best bco'z is consist of only 20 pins (two ports) and it is cheaper than 8051.

Answer 6

8051 is generic name.

at89c51 is a variant of 8051 manufactured by atmel.

it has a flash memory while older 8051 has no memory (runs from external eeprom)

Answer 7

Look on their datasheets.