| Produttore elettronici | Il numero della parte | Scheda tecnica | Spiegazioni elettronici |
 National Semiconductor ... | 54AC273F |  157Kb/8P | Octal D Flip-Flop |
 National Semiconductor ... | 54AC273D |  157Kb/ 8P | Octal D Flip-Flop |
| 54AC273L |  157Kb/ 8P | Octal D Flip-Flop |
 National Semiconductor ... | 54AC273 |  157Kb/ 8P | Octal D Flip-Flop |
 National Semiconductor ... | 54AC20 |  110Kb/ 6P | Dual 4-Input NAND Gate |
| 54AC20D |  110Kb/ 6P | Dual 4-Input NAND Gate |
| 54AC20F |  110Kb/ 6P | Dual 4-Input NAND Gate |
| 54AC20L |  110Kb/ 6P | Dual 4-Input NAND Gate |
 National Semiconductor ... | 54AC240 |  138Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
 National Semiconductor ... | 54AC240D |  138Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54AC240F |  138Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |
| 54AC240L |  138Kb/ 8P | Octal Buffer/Line Driver with TRI-STATE Outputs |