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1Hz output pin SQW.
32KHz output pin 32K.
Voltage Supply: 2.2 V ~ 5.5 V (for RTC).
Time Format: HH: MM: SS (12/24 hr).
Date Format: YY-MM-DD-dd.
DS3231 based RTC with 2032 Battery Holder.
Highly Accurate RTC
Real-Time Clock Counts
Digital Temp Sensor Output.
Register for Aging Trim.
Two Time-of-Day Alarms.
Programmable Square-Wave Output Signal.
Configurable I2C device Address for AT24C32 using SMD jumpers on PCB (A0, A1, A2).