| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54AC280 |  183Kb/6P | 9-Bit Parity Generator/Checker |
| 54AC280F |  183Kb/6P | 9-Bit Parity Generator/Checker |
 National Semiconductor ... | 54AC280F |  183Kb/6P | 9-Bit Parity Generator/Checker |
| 54AC20 |  110Kb/6P | Dual 4-Input NAND Gate |
| 54AC20D |  110Kb/6P | Dual 4-Input NAND Gate |
| 54AC20F |  110Kb/6P | Dual 4-Input NAND Gate |
| 54AC20L |  110Kb/6P | Dual 4-Input NAND Gate |
| 54AC240 |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54AC240D |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54AC240F |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54AC240L |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54AC241 |  135Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |