| 54ACT399DMQB | National Semiconductor | Quad 2-Port Register |
| 54ACT399FM-MLS | National Semiconductor | Quad 2-Port Register |
| 54ACT399FMQB | National Semiconductor | Quad 2-Port Register |
| 54ACT399LMQB | National Semiconductor | Quad 2-Port Register |
| 54ACT520 | National Semiconductor | 8-Bit Identity Comparator |
| 54ACT521 | National Semiconductor | 8-Bit Identity Comparator |
| 54ACT534 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT563 | National Semiconductor | Octal D Latch with TRI-STATE Outputs |
| 54ACT564 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT573 | National Semiconductor | Octal Latch with TRI-STATE Outputs |
| 54ACT573FM-MLS | National Semiconductor | Octal Latch with TRI-STATE Outputs |
| 54ACT574 | National Semiconductor | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT715 | National Semiconductor | Programmable Video Sync Generator |
| 54ACT74 | National Semiconductor | Dual D-Type Positive Edge-Triggered Flip-Flop |
| 54ACT818 | National Semiconductor | 8-Bit Diagnostic Register |
| 54ACT821 | National Semiconductor | 10-Bit D Flip-Flop with TRI-STATE Outputs |
| 54ACT823 | National Semiconductor | 54ACT823 |
| 54ACT825 | National Semiconductor | 8-Bit D-Type Flip-Flop |
| 54ACT825FM-MLS | National Semiconductor | 8-Bit D-Type Flip-Flop |
| 54ACT899 | National Semiconductor | 9-Bit Latchable Transceiver with Parity Generator/Checker |