| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54ACT573 |  159Kb/10P | Octal Latch with TRI-STATE Outputs |
| 54ACT573D |  159Kb/10P | Octal Latch with TRI-STATE Outputs |
| 54ACT573F |  159Kb/10P | Octal Latch with TRI-STATE Outputs |
| 54ACT573L |  159Kb/10P | Octal Latch with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT573D |  159Kb/ 10P | Octal Latch with TRI-STATE Outputs |
| 54ACT573F |  159Kb/ 10P | Octal Latch with TRI-STATE Outputs |
| 54ACT573L |  159Kb/ 10P | Octal Latch with TRI-STATE Outputs |
 National Semiconductor ... | 54ACT574 |  166Kb/ 10P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
| 54ACT574D |  166Kb/ 10P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
| 54ACT574F |  166Kb/ 10P | Octal D-Type Flip-Flop with TRI-STATE Outputs |
| 54ACT574L |  166Kb/ 10P | 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 |  149Kb/ 6P | Octal D Flip-Flop with TRI-STATE Outputs |
| 54ACT534 |  165Kb/ 8P | 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 |