PCF85063AT

Real Time Clock Serial Clock/Calendar/Alarm/Timer/Interrupt 8Pin SO

Overview

The L is a CMOS Real-Time Clock RTC and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. All addresses and data are transferred serially via the two-line bidirectional I²C-bus. Maximum data rate is 400 kbit/s. The register address is incremented automatically after each written or read data byte.

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## Features

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

* Clock operating voltage: 0.9 V to 5.5 V

* Low current; typical 0.27 μA at VDD = 3.0 V and Tamb = 25 °C

* 400 kHz two-line I²C-bus interface at VDD = 1.8 V to 5.5 V

* Programmable clock output for peripheral devices 32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz

* Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF

* Alarm function

* Countdown timer

* Minute and half minute interrupt

* Internal Power-On Reset POR

* Programmable offset register for frequency adjustment

## Target Applications

* Digital still camera

* Digital video camera

* Printers

* Copy machines

* Mobile equipment

* Battery powered devices

## Features