The RV-3149-C3 is a surface-mount Real-Time Clock module that integrates a CMOS circuit and a 32.768 kHz tuning fork crystal. It features factory-calibrated digital temperature compensation (DTCXO) providing high time accuracy across an extended temperature range. The device includes a 4-wire SPI interface, automatic backup switchover with a trickle charger, and versatile alarm and timer functions. It is housed in a miniature ceramic package with a metal lid and is designed for high reliability in automotive and industrial applications.
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MICRO CRYSTAL AG RV-3149-C3-32.768KHZ-OPTION-A-TB-QA technical specifications.
| Frequency | 32.768kHz |
| Interface | SPI (4-wire, 1 MHz) |
| Supply Voltage Range | 1.3 to 5.5V |
| Timekeeping Current Consumption (typ) | 800nA |
| Time Accuracy (Option A) | ±6 (at -40 to +85°C)ppm |
| Operating Temperature Range | -40 to +125°C |
| User RAM | 8Bytes |
| User EEPROM | 2Bytes |
| Dimensions | 3.7 x 2.5 x 0.9mm |
| RoHS | Compliant (RoHS3) |
| Automotive Qualification | AEC-Q200 Qualified (QA suffix) |
| REACH | Compliant |
Download the complete datasheet for MICRO CRYSTAL AG RV-3149-C3-32.768KHZ-OPTION-A-TB-QA to view detailed technical specifications.
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