One of my companies products has an 8051 variant produced by a Chinese manufacturer (P/N STC89LE52AD (40 Dip) made by STC) specified. This component was obsoleted recently and I am being asked to find a drop in replacement.
The unique thing about this device relative to the other 8051/8052 variants with an ADC I have looked at is that the analog inputs are supported on P1.0 to P1.7 (Pins 1-8).
Does anybody know of anything that may work as a drop in for this?
I am able to modify the code to support any different SFR's, header files, etc. - Due to UL restrictions, I cannot change the PCB at this point in time.
Thank you Michael Jensen