BD4721G и другие
| Компонент | Описание | Производитель | |
| BD4721 | System Reset IC |
Rohm |
 |
| BD4721G | System Reset IC |
Rohm |
|
| UPD4721 | RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V |
NEC |
|
| UPD4721GS-GJG | RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V |
NEC |
|