| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | PAL20RA10 |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10JC |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10JM |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10NC |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10NM |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10VC |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10VM |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
 National Semiconductor ... | PAL20RA10JC |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10JM |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10NC |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10NM |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10VC |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| PAL20RA10VM |  356Kb/11P | PROGRAMMABLE ARRAY LOGIC(PAL) |
| 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) |