| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | PAL20L6VC |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
 National Semiconductor ... | PAL20L6VM |  448Kb/14P | Progammable Array Logic Series 24 (PAL Series 24) |
| PAL20L6-4JC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-4JM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-4NC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-4NM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-4VC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-4VM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-5JC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-5JM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-5NC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-5NM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-5VC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-5VM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-7JC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-7JM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-7NC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-7NM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-7VC |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |
| PAL20L6-7VM |  1Mb/18P | Programmable Array Logic 24-Pin Medium PAL Series -7,-5,and -4 |