| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54ACQ |  309Kb/10P | Quiet Seres Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54ACQ240 |  144Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ240D |  144Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ240F |  144Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ240L |  144Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ244 |  140Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ244 |  29Kb/7P | Octal Buffers/Line Drivers With TRI-State Outputs |
| 54ACQ244 |  140Kb/8P | Quiet Series Octal Buffer/Line Driver |
| 54ACQ244D |  140Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ244DMQB |  29Kb/7P | Octal Buffers/Line Drivers With TRI-State Outputs |
| 54ACQ244F |  140Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ244FMQB |  29Kb/7P | Octal Buffers/Line Drivers With TRI-State Outputs |
| 54ACQ244L |  140Kb/8P | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACQ244LMQB |  29Kb/7P | Octal Buffers/Line Drivers With TRI-State Outputs |
 National Semiconductor ... | 54ACQ245 |  153Kb/8P | Quiet Series Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs |
| 54ACQ245D |  153Kb/8P | Quiet Series Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs |
| 54ACQ245F |  153Kb/8P | Quiet Series Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs |
| 54ACQ245L |  153Kb/8P | Quiet Series Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs |