Part Number
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PCF8523 |
Manufacturer
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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...
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Datasheet
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PCF8523
|
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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