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Raspberry Pi foreign highest precision clock module DS3231
Note for motherboards also use this module.
Modules can adapt itself 3.3V and 5V systems without level conversion, this is a super convenient!
The 1.-40 ° C to +85 ° C temperature range, timing accuracy kept at ± 5ppm (± 0.432 sec / day)
2 timed to provide continuous battery backup
4. Device package and function compatible with the DS3231
5. Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
6 two calendar alarm
7.1Hz and 32.768kHz output
8 Reset button debounced input and output
9-speed (400kHz) I2C serial bus
10. +2.3 V to +5.5 V Supply Voltage
11 ± 3 ° C accuracy digital temperature sensor
12.-40 ° C to +85 ° C operating temperature range
13.16-pin SO (300mil) package
14 by Underwriters Laboratories (UL) certification