What tools and techniques can I use to identify an unknown IC with no markings?
Today I encountered a microcontroller under an epoxy blob. The blob had 11 pads on each of four sides, perhaps 44tqfp. From the board, I know which pin is the reset line and I probably know which pins make up an SPI interface.
Is there such a thing as an expert system for answering these puzzles with the information I have?
Are there any searchable databases of pinouts online?
Would X-raying/Decapping the package be worthwhile?