PCF8564A Datasheet PDF - NXP Semiconductors Real-time Clock/Calendar Specs

PCF8564A - Real-time Clock/Calendar

Datasheet Summary

Description

The PCF8564A is a CMOS1 real-time clock 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 the two-line bidirectional I2C-bus.

Features

Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.
Wide clock operating voltage: 1.0 V to 5.5 V.
Low back-up current typical 250 nA at 3.0 V and 25 C.
400 kHz two-wire I2C interface (1.8 V to 5.5 V).
Low-voltage detector.
Alarm and timer functions.
Two integrated oscillator capacitors.
Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz).
Internal Power-On Reset.

Datasheet Details

Part number	PCF8564A
Manufacturer	NXP Semiconductors
File Size	324.41 KB
Description	Real-time Clock/Calendar
Datasheet	PCF8564A Datasheet
Additional preview pages of the PCF8564A datasheet.

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Full PDF Text Transcription

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PCF8564A Real time clock and calendar Rev. 3 — 26 August 2013 Product data sheet 1. General description The PCF8564A is a CMOS1 real-time clock 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 the two-line bidirectional I2C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte. 2. Features and benefits  Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal  Wide clock operating voltage: 1.0 V to 5.5 V  Low back-up current typical 250 nA at 3.0 V and 25 C  400 kHz two-wire I2C interface (1.8 V to 5.

Published: Jul 17, 2010 |