PCA21125 Datasheet - NXP

PCA21125 SPI-bus Real-Time Clock/calendar

The PCA21125 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low-power consumption and an operating temperature up to 125 C. Data is transferred via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timer functions are also available with the poss.

PCA21125 Features

* AEC Q100 compliant for automotive applications.

* Provides year, month, day, weekday, hours, minutes, and seconds based on 32.768 kHz quartz crystal

* Resolution: seconds to years

* Clock operating voltage: 1.3 V to 5.5 V

* Low supply current: typical 0.8 A at Tamb = 25 C

PCA21125-NXP.pdf