RV-3149-C3
Type |
Package [mm] |
Interface |
Features
|
Current
@ 3V |
Time Accuracy
@ 25°C |
Temp Comp
-40/85°C |
VDD
min |
VDD
max |
Temp.
max |
Documents | |
---|---|---|---|---|---|---|---|---|---|---|---|
RV-3149-C3 | 3.7 x 2.5 x 0.9 | SPI | 800 nA | ±6.0 ppm | 1.3 V | 5.5 V | +125°C |
Datasheet App. Manual Free Samples |
RV-3149-C3 is a CMOS low power, real-time clock/calendar module with built-in Thermometer and Digital Temperature Compensation circuitry (DTCXO). The temperature compensation circuitry is factory-calibrated and greatly improves the time accuracy by compensating the frequency-deviation @ 25°C and the anticipated frequency-drift over the temperature of the embedded 32.768 kHz “Tuning-Fork” crystal, even over the extended Temperature Range -40°C to +125°C. Data is transferred serially via a SPI interface with a maximum SCL clock frequency in fast mode of 1 MHz, the built-in word address register is incremented automatically after each written or read data byte. Beyond standard RTC-functions like year, month, day, weekday, hours, minutes, seconds information, the RV-3149-C3 offers highly versatile Alarm and Timer-Interrupt function, programmable Clock-Output and Low-Voltage Detector.
Features
- 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
- SPI serial interface with fast mode SCL clock frequency of 1 MHz
- 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)
Block Diagram
Applications
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