| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DM74S287AV |  124Kb/4P | (256 x 4) 1024-BIT TTL PROM |
 National Semiconductor ... | DM74S287AJ |  124Kb/ 4P | (256 x 4) 1024-BIT TTL PROM |
| DM74S287AN |  124Kb/ 4P | (256 x 4) 1024-BIT TTL PROM |
| DM74S287J |  124Kb/ 4P | (256 x 4) 1024-BIT TTL PROM |
| DM74S287N |  124Kb/ 4P | (256 x 4) 1024-BIT TTL PROM |
| DM74S287V |  124Kb/ 4P | (256 x 4) 1024-BIT TTL PROM |
 National Semiconductor ... | DM74S287 |  124Kb/ 4P | (256 x 4) 1024-BIT TTL PROM |
| DM74S288 |  111Kb/ 4P | 256-BIT TTL PROM |
| DM74S288AJ |  111Kb/ 4P | 256-BIT TTL PROM |
| DM74S288AJ |  132Kb/ 4P | 256 - BIT TTL PROM |
| DM74S288AN |  111Kb/ 4P | 256-BIT TTL PROM |
| DM74S288AN |  132Kb/ 4P | 256 - BIT TTL PROM |
| DM74S288AV |  111Kb/ 4P | 256-BIT TTL PROM |
| DM74S288AV |  132Kb/ 4P | 256 - BIT TTL PROM |
| DM74S288J |  111Kb/ 4P | 256-BIT TTL PROM |
| DM74S288J |  132Kb/ 4P | 256 - BIT TTL PROM |