SN74LS20NSR и другие
| Компонент | Описание | Производитель | |
| SN74LS20NSR | DUAL 4-INPUT POSITIVE-NAND GATES |
Texas Instruments |
 |
| SN74LS20NSRE4 | DUAL 4-INPUT POSITIVE-NAND GATES |
Texas Instruments |
|
| SN74LS20NSRG4 | DUAL 4-INPUT POSITIVE-NAND GATES |
Texas Instruments |
|