| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | PAL20R1 |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10 |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10A |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AJ |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AJC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AJM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AN |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10ANC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10ANM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AV |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AVC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10AVM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10C |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10J |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10JC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10JM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20R10M |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |