What is unique in the AT89S8252 microcontroller compared wit

What is unique in the AT89S8252 microcontroller compared with the standard Intel 8051 model? Would you recommend it for new design?

Solution

AT89S8252 microcontroller is system programmable and Intel 8051 is not system programmable.

The AT89S8252 has 256 bytes of internal RAM, the 8051 has 128 bytes of internal RAM.

AT89S8252 has three 16-bit timers, the 8051 has two 16-bit timers.The third additional timer has some new operation modes not available with the 8051.

The AT89S8252 has more Special Function Registers (SFR) as required for the additional features.

As AT89S8252 microcontroller has mote features than 8051, Would recommend AT89S8252 microcontroller.