DS3231 Real Time Clock Module 3.3V/5V with Battery

Modules can adapt itself 3.3V and 5V systems without level conversion, this is a super convenient!

• -40 ° C to +85 ° C temperature range, timing accuracy kept at ± 5ppm (± 0.432 sec / day)
• Timed to provide continuous battery backup
• Low-power
• Device package and function compatible with the DS3231
• Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
• Two calendar alarm
• 1Hz and 32.768kHz output
• Reset button debounced input and output
• Speed (400kHz) I2C serial bus
• +2.3 V to +5.5 V Supply Voltage
• ± 3 ° C accuracy digital temperature sensor
• 40 ° C to +85 ° C operating temperature range
• 16-pin SO (300mil) package