* [[Media:UPD8039HLC Datasheet.pdf|uPD8039HLC Datasheet]] (HLC apparently means a High-speed/HMOS version, aside from that it's probably compatible with the LC version used in DMP1)
* [[Media:UPD7811G Datasheet.pdf|uPD7811G Datasheet]] (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)
* [[Media:UPD78C11A Datasheet.pdf|uPD78C11A Datasheet]] (CMOS version of [[uPD7810/uPD7811|uPD7811]], this datasheet version includes some info fragments on MODE0/MODE1 pins)
* [[Media:UPD78310A Datasheet.pdf|uPD78310A Datasheet]]