IC RTC with I²C interface in NSOIC-8 pin packaging. It has been integrated with MEMS (MicroElectroMechanical Systems).
Features:
- Full function for calendar, hour (second, minute, hour, day, date, month and year).
- Accuracy timekeeping ± 5 ppm (± 0.432 sec / day) with working temperature -45 ° C to 85 ° C.
- Output 1 Hz and 32,768 kHz.
- Power supply: 2.3V - 5.5V.
http://www.farnell.com/datasheets/2001796.pdf?_ga=1.59084260.898254825.1447042516
Features:
- Full function for calendar, hour (second, minute, hour, day, date, month and year).
- Accuracy timekeeping ± 5 ppm (± 0.432 sec / day) with working temperature -45 ° C to 85 ° C.
- Output 1 Hz and 32,768 kHz.
- Power supply: 2.3V - 5.5V.
http://www.farnell.com/datasheets/2001796.pdf?_ga=1.59084260.898254825.1447042516