The Internal RAM Memory of the 8051 is

Answer – C. 128 bytes

The internal RAM memory of the 8051 is 128 bytes.

Solution:

The detailed solution to the question, the internal ram memory of the 8051 is provided here. 

The 8051 microcontroller’s memory is divided into Program Memory and Data Memory. Program Memory (ROM) is used for the permanent saving programS being executed, while Data Memory (RAM) is used for temporarily storing and keeping intermediate results and variables.

Up to 256 bytes of internal data memory are available depending on the 8051 derivatives. Locations available to the user occupy addressing space from 0 to 7FH, i.e. first 128 registers, and this part of RAM is divided into several blocks. The first 128 bytes of internal data memory are both directly and indirectly addressable. 

Therefore, the internal RAM memory of the 8051 is 128 bytes. Hence, Option (C) is the correct answer.

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