| Компонент | Описание | Производитель | |
| DS3231MZ | 5ppm, I2C Real-Time Clock Battery Backup for Continuous Timekeeping |
Maxim Integrated Products |
|
| DS3231MZ+ | a5ppm, I2C Real-Time Clock |
Maxim Integrated Products |
|
| DS3231MZ+ | a5ppm, I2C Real-Time Clock |
Maxim Integrated Products |
|
| DS3231MZ/V+ | a5ppm, I2C Real-Time Clock |
Maxim Integrated Products |