SN74LS221ML2 и другие
| Компонент | Описание | Производитель | |
| SN74LS221ML1 | Dual Monostable Multivibrators With Schmitt-Trigger Inputs |
ON Semiconductor |
 |
| SN74LS221ML1 | Dual Monostable Multivibrators With Schmitt-Trigger Inputs |
ON Semiconductor |
|
| SN74LS221ML2 | Dual Monostable Multivibrators With Schmitt-Trigger Inputs |
ON Semiconductor |
|