RV-3049-C3 Please consider the recommended RV-3149-C3 for new design-in

RV-3049-C3 Please consider the recommended RV-3149-C3
RV-3149-C3 is Form Fit and Function compatible.The package features now side castellations post soldering for optical inspection.

RV-3049-C3 is an high accuracy, ultra low power Real-Time-Clock Module with embedded 32.768 kHz Crystal. High accuracy, high stability is achieved by factory calibrated, temperature compensated DTCXO and results to time-accuracy of ± 3.0 ppm accross the temperature range from -40°C to +85°C.

Standard Clock & Calendar function tracks second, minute, hour in 24-hour format, year and leap -year fl ags. Beside standard RTC function like Timer & Alarm, it includes integrated Temperature Sensor, Time Stamp Event Input and User RAM and offers I²C-bus (2-wire Interface). RV-8803-C7 is the smallest and offers the lowest current consumption among all temperature compensated RTC modules.


  • RTC module with built-in “Tuning Fork” crystal oscillating at 32.768 kHz
  • Factory calibrated, all built-in Temperature Compensation circuitry
  • Time accuracy: Temperature Range
    • 25°C +/- 3 ppm 
    • 0°C to + 50°C +/- 4 ppm 
    • -10°C to + 60°C +/- 5 ppm 
    • -40°C to + 85°C +/- 6 ppm 
    • -40°C to +125°C +/- 8 ppm
  • Ultra low power consumption: 800nA typ @ VDD = 3.0V / Tamb = 25°C
  • Wide clock operating voltage: 1.3 – 5.5V
  • Extended operating temperature range: -40°C to +125°C
  • I²C serial interface with fast mode SCL clock frequency of 400 kHz
  • Provides year, month, day, weekday, hours, minutes and seconds
  • Main Power Supply to Backup Battery switchover circuitry with Trickle Charger
  • Programmable CLKOUT pins for peripheral devices (32.768 kHz / 1024 Hz / 32 Hz / 1 Hz)


The unique features make this product perfectly suitable for many applications:

  • Automotive: Car Radio / GPS and Tracking Systems / Dashboard / Engine Controller /
  • Car Mobile & Entertainment Systems / Tachometers
  • Metering: E-meter / Heating Counter
  • Outdoor: ATM & POS systems / Surveillance & Safety systems / Ticketing system
  • All kind of portable and battery operated devices
  • Industrial and consumer electronics
  • White goods