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PCF8563 Datasheet Real-time Clock/calendar

Manufacturer: NXP Semiconductors

Overview: PCF8563 Real-time clock/calendar Rev. 11 — 26 October 2015 Product data sheet 1.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The PCF8563 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption.

A programmable clock output, interrupt output, and voltage-low detector are also provided.

All addresses and data are transferred serially via a two-line bidirectional I2C-bus.

Key Features

  • Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.
  • Century flag.
  • Clock operating voltage: 1.0 V to 5.5 V at room temperature.
  • Low backup current; typical 0.25 A at VDD = 3.0 V and Tamb = 25 C.
  • 400 kHz two-wire I2C-bus interface (at VDD = 1.8 V to 5.5 V).
  • Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz).
  • Alarm and timer functions.
  • Integrated oscillator capacitor.

PCF8563 Distributor