This is an Apple II printer card with a 4K expansion ROM and 64K of DRAM.

Schematic | KiCad Project & all artifacts
U11 truth tables

The center of the card is a 8741A microcontroller that the CPU interacts with. I don’t have the ability to dump the program ROM of this microcontroller.

The card also contains a programmable logic device, a PAL16R6. I’m unable to dump the program fuses directly but was able to extract the observed truth tables.

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