Replacing 89C61X2

[vks992]

I am facing a problem while replacing the P89C61X2 with an MCU from other manufacturer . As per data sheet the new MCU has all the features that of this device, expcet one. The new MCU is operating at 3.3V - 3.6V.

When I load the program in the new make MCU. it did not function on my machine.

What are the modifications required doing this replacement.

[Andy Ayre]

There are lots of variations in 8051s between manuafacturers. About the only thing that stays the same is the instruction set. Compare the datasheets.

Note that this is a forum for the discussion of Flash Magic and Philips ISP.

[Rons]

If you want to continue to ask this type of question it would help
to specify your new MCU. There are other forums that could address
this question better.