| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54ACT563 |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
| 54ACT563D |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
| 54ACT563F |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
| 54ACT563L |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT563D |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
| 54ACT563F |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
| 54ACT563L |  159Kb/6P | Octal Latch with TRI-STATE Outputs |
| 54ACT564 |  131Kb/8P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
| 54ACT564D |  131Kb/8P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
| 54ACT564F |  131Kb/8P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
| 54ACT564L |  131Kb/8P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT520D |  177Kb/10P | 8-Bit Identity Comparator |
| 54ACT520F |  177Kb/10P | 8-Bit Identity Comparator |
| 54ACT520L |  177Kb/10P | 8-Bit Identity Comparator |
| 54ACT521 |  195Kb/10P | 8-Bit Identity Comparator |
| 54ACT534 |  165Kb/8P | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT534 |  149Kb/6P | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT534D |  149Kb/6P | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT534DCQB |  165Kb/8P | Octal D Flip-Flop with TRI-STATE Outputs |