Can't find any information about this mystery card I yanked from the Apple IIe. The large chip is an asynchronous communications adapter I can't find a datasheet for; everything else is a 74xx logic chip. It's got its own clock. No markings on the other side. The rework wires don't speak to a large production run. Strong TIS-100 vibes from this thing.
@phooky That took me down a deep dive, but found it! It's a Micron Eye camera card! http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Digitizers/Micron%20MicronEye/Photos/ - That 4040 counter IC next to the crystal looks sub-optimal tho!
@cefiar Thank you so much for finding this! I'd completely given up on figuring out what this was. The Apple IIe was donated about 6-7 years ago and I don't think the camera came along with it.
The IS32 is an incredible rabbit hole.
https://www.cs.uaf.edu/2007/fall/cs441/support/dram_sensor_1984_whitehead.pdf
Apparently you can use almost any decapped low-capacity DRAM to do imaging, which is just awesome.
@phooky @cefiar "All transistors are secretly phototransistors" - 64 KBit is quite a nice upgrade from the 1 KBit of the CYCLOPS. https://archive.org/details/PopularElectronics-February1975OCR
