| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | PAL20L4A |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AJ |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AJC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AJM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AN |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4ANC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4ANM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AV |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AVC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L4AVM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |