Abracon Ultra-Low Power RTC Modules
Abracon Ultra-Low Power RTC Modules provide an embedded 32.768kHz crystal oscillator and an I2C communication interface. These Real-Time Clock (RTC) modules offer ±20ppm frequency accuracy at 25°C in a compact and lead-free ceramic SMD 2mm x 1.2mm package. The ultra-low power RTC modules support a broad operating power supply range of 0.9V to 5.5V, with 190nA of low power consumption at 3V. These RTC modules feature a digital offset function, alarm and timer function, oscillator stop detection, and an internal Power‑On Reset (POR) function. The ultra-low power RTC modules are REACH/RoHS II compliant and are rated at MSL level 1. Typical applications include IoT, smart metering, industrial, factory automation, health care monitoring systems, wearables, portables, and sensors.
Features
- 190nA very low power consumption at 3V
- ±20ppm time accuracy at 25°C
- Oscillator stop detection function
- Integrated CMOS oscillator with 32.768kHz crystal resonator
- 0.9V to 5.5V wide operating voltage range
- 1.8V to 5.5V wide interface operating voltage range
- Programmable offset register for frequency adjustment
- Internal Power‑On Reset (POR)
- Alarm interrupts for seconds, minutes, hours, date, and weekday
- 2000 to 2099 automatic leap year calculation
- Clock output: 32.768kHz, 16.384kHz, 8.192kHz, 4.096kHz, 2.048kHz, 1.024kHz, and 1Hz
- 400kHz I2C‑bus interface
- MSL Level 1 and REACH/RoHS II compliant
- AEC-Q200 qualified (AB-RTC-XPA-32.768kHz-2)
Applications
- IoT
- Smart metering
- Industrial and factory automation
- Health care monitoring systems
- Wearables, portables, and sensors
Specifications
- -0.5V to 6.5V power supply voltage range (VDD)
- -50mA to 50mA power supply current range (IDD)
- -0.5V to 6.5V input voltage range (VI)
- -0.5V to 6.5V output voltage range (VO)
- -10mA to 10mA input current range (II)
- -10mA to 10mA output current range (IO)
- 300mW total power dissipation (PTOT)
Block Diagram
