The RV-3129-C3 is a CMOS real-time clock/calendar module with an embedded 32.768 kHz tuning fork crystal and digital temperature compensation (DTCXO). It features an I2C serial interface, factory-calibrated temperature compensation for high time accuracy, and integrated functions including alarm, timer, clock output, and a battery switchover circuit with a trickle charger.
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| Frequency | 32.768kHz |
| Supply Voltage Min | 1.3V |
| Supply Voltage Max | 5.5V |
| Current Consumption | 800nA |
| Time Accuracy (Option A) | ±3ppm |
| Operating Temperature Range | -40 to +125°C |
| Interface | I2C |
| RAM | 8bytes |
| EEPROM | 2bytes |
| RoHS | Compliant |
| Automotive Grade | AEC-Q200 |
