1. The accuracy of the timing is kept at ± 5ppm ( ± 0.432 sec / day ) within the temperature range of -40 ° C to +85 ° C
2. Provide battery backup for continuous timing
3. Low power consumption
4. Device package and function are compatible with DS3231
5. Complete clock calendar function includes seconds, minutes, hours, weeks, dates, months and years, and provides leap year compensation valid until 2100
6. Two calendar alarm clocks
7. 1Hz and 32.768kHz output
8. Reset output and button debounce input
9. High speed (400kHz) I2C serial bus
10. +2.3V to +5.5V supply voltage
11. Digital temperature sensor with an accuracy of ± 3 ° C
12. -40 ° C to +85 ° C operating temperature range
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