PCF8523

Real-Time Clock/Calendar

NXP

PCF8523 Features

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

* Resolution: seconds to years

* Clock operating voltage: 1.0 V to 5.5 V

* Low backup current: typical 150 nA at VDD = 3.0 V and Tamb = 25 C

* 2 line bidirectional 1 MHz Fast-m

PCF8523 General Description

The PCF8523 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. Data is transferred serially via the I2C-bus with a maximum data rate of 1000 kbit/s. Alarm and timer functions are available with the possibility to generate a wake-up signal on an interrupt pin. An offse.

PCF8523 Datasheet (672.18 KB)