In 8051 RAM size is 128 bytes which is divided in to 3 areas like register bank ,Bit addressable are and scratch pad area. what is the location for SFR ? many literature stating that 8051 has 256 byte memory in it 128 byte for general purpose and rest 128 for special purpose which one is true ? i am confused about (1)what is the RAM size of 8051 weather 128 bytes or 256 bytes? (2) if the RAM size is 128 bytes what are location for the SFR ?
8051/2
That would be the Intel 4025.5 then
Is that before or after to 8048?
It does surprise me that you don't mention the 8031 or 8032 in your exhibition of knowledge.
It does surprise me that you don't mention the 8031 or 8032 in your exhibition of knowledge. 1) 803x are just w/o code memory 2) have not heard of 803x for the last 10+ years 3) the "original numberint system" has basically been abandoned e.g. I can count dozens of 8051 devices with 256 bytes of IRAM (NXP, SILabs, Arghmel, ....)