| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DP8224 |  143Kb/8P | Clock Generator and Driver |
| DP8224J |  143Kb/8P | Clock Generator and Driver |
| DP8224N |  143Kb/8P | Clock Generator and Driver |
 National Semiconductor ... | DP8224J |  143Kb/ 8P | Clock Generator and Driver |
| DP8224N |  143Kb/ 8P | Clock Generator and Driver |
| DP8226 |  118Kb/ 6P | 4-Bit Bidirectional Bus Transceivers |
| DP8226J |  118Kb/ 6P | 4-Bit Bidirectional Bus Transceivers |
| DP8226MJ |  118Kb/ 6P | 4-Bit Bidirectional Bus Transceivers |
| DP8226N |  118Kb/ 6P | 4-Bit Bidirectional Bus Transceivers |
 National Semiconductor ... | DP8228 |  137Kb/ 6P | System Controller and Bus Driver |
 National Semiconductor ... | DP8228J |  137Kb/ 6P | System Controller and Bus Driver |
 National Semiconductor ... | DP8228MJ |  137Kb/ 6P | System Controller and Bus Driver |
 National Semiconductor ... | DP8228N |  137Kb/ 6P | System Controller and Bus Driver |
 National Semiconductor ... | DP8212 |  189Kb/ 10P | 8-Bit Input/Output Port |