DS12CR887-33+ и другие
| Компонент | Описание | Производитель | |
| DS12CR887-33 | RTC with Constant-Voltage Trickle Charger |
Maxim Integrated Products |
 |
| DS12CR887-33 | RTC with Constant-Voltage Trickle Charger |
Dallas Semiconductor |
|
| DS12CR887-33+ | RTCs with Constant-Voltage Trickle Charger |
Maxim Integrated Products |
|