| Компонент | Описание | Производитель | |
| 74HC221D | Dual non-retriggerable monostable multivibrator with reset |
NXP Semiconductors |
|
| 74HC221DB | Dual non-retriggerable monostable multivibrator with reset |
NXP Semiconductors |
|
| IN74HC221D | Dual monostable multivibrator |
Integral Corp. |
|
| SL74HC221D | Dual Monostable Multivibrator |
System Logic Semiconductor |