avr is high speed cmpar to 8051.in 8051 there are less number of instructions
89s51 and 89s52 both are same version of 8051 microcontroller
The at89c52 are ones that are more advanced. This means that they are programmable compared to the 8051 which is not. So this makes a really big difference.
Intel
how many interrupts in 8051
The 8051 Microcontroller is a microcontroller ("chip") developed by Intel in 1980.
The 8051 runs on +5vdc.
8051 family
yes
2.4ma
ne ebbba
You will need a 8051 device programmer that connect to a PC with software to drive the programmer
89c51 is an microcontroller of 8051 series it is an 8-bit device packed in 40-pin package.