The 8085 is called an 8 bit microprocessor because the accumulator is 8 bits in size. This means that the primary data size is 8 bits. This is true even though the address bus, certain registers, and certain register operations are 16 bits in size.
The only tow ways are
1- You are experienced with the microcontroller family so you can say witch one is 8 or 16 bit from their manufacturer number.
2- Look in the datasheet of the components. Always in the CPU or core description.
Think that may help
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The 8051 is an 8-bit microcontroller because Intel says it is.
It has 8 bit registers, an 8 bit accumulator, and an 8 bit arithmetic/logic unit. As a result, it can handle 8 bit arithmetic and logic.
Just because it has a 16 bit address bus, it is not a 16 bit microcontroller.
Micro controller is 8- bit or 16- bit on basis of alu of micro controller speed of data execution if it performs 8 bit per sec then it called 8-bit controller and so on....
Because it can hold only 8 bit data in Accumulator(which is an 8-bit register). However we can store the data of more than 8 bits but still it can easily handle only 8 bit data..
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.
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.
89s51 and 89s52 both are same version of 8051 microcontroller
for better programing
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
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.
avr is high speed cmpar to 8051.in 8051 there are less number of instructions
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.