PC8523-1(2012) 查看數據表（PDF） - NXP Semiconductors.

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PC8523-1
(Rev.:2012)

Real-Time Clock (RTC) and calendar

NXP Semiconductors. 

NXP Semiconductors

6. Block diagram

PCF8523

Real-Time Clock (RTC) and calendar

OSCI

OSCO

COSCI OSCILLATOR

32.768 kHz

COSCO

VDD

VBAT

VSS

BATTERY

BACKUP

SWITCH-OVER

CIRCUTRY

POWER-ON

RESET

SDA

SCL

I2C-BUS

INTERFACE

PCF8523

DIVIDER

CLOCK

CALIBRATION

OFFSET

SYSTEM

CONTROL

REAL-TIME

CLOCK

ALARM

TIMER

Fig 1. Block diagram of PCF8523

CLOCK OUT

INTERRUPT

CLKOUT

&

INT1/CLKOUT

INT2

013aaa305

PCF8523

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 5 July 2012

© NXP B.V. 2012. All rights reserved.

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