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PCF8523

Part Number	PCF8523
Manufacturer	NXP
Description	Real-Time Clock/Calendar
Published	Jul 23, 2014
Detailed Description	PCF8523 Real-Time Clock (RTC) and calendar Rev. 7 — 28 April 2015 Product data sheet 1. General description The PCF852...
Datasheet	PCF8523 PDF File

Overview

PCF8523 Real-Time Clock (RTC) and calendar Rev.
7 — 28 April 2015 Product data sheet 1.
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 offset register allows fine-tuning of the clock.
The PCF8523 has a backup battery switch-over circuit, which detects power failures and automatically switches to the battery supply when a power failure occurs.
For a selection of NXP Real-Time Clocks, see Table 56 on page 68 2.
Features and bene...

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