| 54ACQ245 | National Semiconductor | Quiet Series Octal Bidirectional Transceiver w/TRI-STATE Outputs |
| 54ACT240 | National Semiconductor | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACT241 | National Semiconductor | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACT244 | National Semiconductor | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACT245 | National Semiconductor | Octal Bidirectional Transceiver with TRI-STATE Inputs/ Outputs |
| 54ACT899 | National Semiconductor | 9-Bit Latchable Transceiver with Parity Generator/Checker |
| 54ACTQ16240 | National Semiconductor | 16-Bit Inverting Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ16244 | National Semiconductor | 16-Bit Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ16245 | National Semiconductor | 16-Bit Transceiver with TRI-STATE Outputs |
| 54ACTQ16540 | National Semiconductor | 16-Bit Inverting Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ16541 | National Semiconductor | 16-Bit Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ16646 | National Semiconductor | 16-Bit Transceiver/Register with TRI-STATE Outputs |
| 54ACTQ240 | National Semiconductor | Quiet Series Inverting Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ241 | National Semiconductor | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ244 | National Semiconductor | Quiet Series Octal Buffer/Line Driver w/TRI-STATE Outputs |
| 54ACTQ245 | National Semiconductor | Quiet Series Octal Bidirectional Transceiver w/TRI-STATE Outputs |
| 54ACTQ541 | National Semiconductor | Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54ACTQ543 | National Semiconductor | Quiet Series Octal Registered Transceiver with TRI-STATE Outputs |
| 54ACTQ544 | National Semiconductor | Quiet Series Octal Registered Transceiver with TRI-STATE Outputs |
| 54ACTQ827 | National Semiconductor | Quiet Series 10-Bit Buffer/Line Driver with TRI-STATE Outputs |