| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54ACT240DMQB |  18Kb/6P | Octal Buffers/Line Drivers With TRI-State Outputs |
 National Semiconductor ... | 54ACT240D |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACT240F |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACT240L |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT240 |  138Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT241 |  135Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT244 |  136Kb/8P | Octal Buffer/Line Driver with TRI-STATE Outputs |