| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54ACT151F |  156Kb/10P | 8-Input Multiplexer |
 National Semiconductor ... | 54ACT151D |  156Kb/10P | 8-Input Multiplexer |
| 54ACT151L |  156Kb/10P | 8-Input Multiplexer |
| 54ACT151 |  170Kb/9P | 8-Input Multiplexer |
 National Semiconductor ... | 54ACT153D |  150Kb/8P | Dual 4-Input Multiplexer |
| 54ACT153F |  150Kb/8P | Dual 4-Input Multiplexer |
| 54ACT153L |  150Kb/8P | Dual 4-Input Multiplexer |
 National Semiconductor ... | 54ACT157D |  137Kb/8P | Quad 2-Input Multiplexer |
| 54ACT157F |  137Kb/8P | Quad 2-Input Multiplexer |
| 54ACT157L |  137Kb/8P | Quad 2-Input Multiplexer |
 National Semiconductor ... | 54ACT158D |  141Kb/8P | Quad 2-Input Multiplexer |
| 54ACT158F |  141Kb/8P | Quad 2-Input Multiplexer |
| 54ACT158L |  141Kb/8P | Quad 2-Input Multiplexer |
| 54ACT109D |  167Kb/8P | Dual JK Positive Edge-Triggered Flip-Flop |
| 54ACT109F |  167Kb/8P | Dual JK Positive Edge-Triggered Flip-Flop |
| 54ACT109L |  167Kb/8P | Dual JK Positive Edge-Triggered Flip-Flop |