I am stuck with one - very complex - board with an atmega128L processor on it. This board basically process - in a convoluted way - the same functions as my many '51 products.
I know that I can compile my C code with an IAR compiler and use the atmega 'as is', this, however, is a pain in the lower back.
The ORCAD file for this board can not to be found. So to redo the board will be very involved.
I would like to replace the atmega with a '51 derivative (almost any will do - need no a/d, no spi, no IIC, just ports and Txd/Rxd).
Does anyone know of a '51 derivative with an atmega128 compatible pinout.

Thanx,

Erik