| 54ACQ374 | National Semiconductor | Quiet Series Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT109 | National Semiconductor | Dual JK Positive Edge-Triggered Flip-Flop |
| 54ACT112 | National Semiconductor | Dual JK Negative Edge Triggered Flip-Flop |
| 54ACT174 | National Semiconductor | Hex D Flip-Flop with Master Reset |
| 54ACT175 | National Semiconductor | Quad D Flip-Flop |
| 54ACT374 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT377 | National Semiconductor | Octal D Flip-Flop with Clock Enable |
| 54ACT534 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT564 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT574 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT74 | National Semiconductor | Dual D-Type Positive Edge-Triggered Flip-Flop |
| 54ACT821 | National Semiconductor | 10-Bit D Flip-Flop with TRI-STATE Outputs |
| 54ACT825 | National Semiconductor | 8-Bit D-Type Flip-Flop |
| 54ACTQ16374 | National Semiconductor | 16-Bit D Flip-Flop with TRI-STATE Outputs |
| 54ACTQ273 | National Semiconductor | Quiet Series Octal D Flip-Flop |
| 54ACTQ374 | National Semiconductor | Quiet Series Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACTQ377 | National Semiconductor | Octal D Flip-Flop with Clock Enable |
| 54ACTQ574 | National Semiconductor | Quiet Series Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACTQ646 | National Semiconductor | Quiet Series Octal Transceiver/Register with 3-STATE Outputs |
| 54ACTQ657 | National Semiconductor | Quiet Series Octal Bidirectional Transceiver with 8-Bit Parity Generator/Checker and TRI-STATE Outputs |