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PCF2129 Fiches technique(PDF) 32 Page - NXP Semiconductors

No de pièce PCF2129
Description  Accurate RTC with integrated quartz crystal for industrial applications
PDF  86 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF2129 Fiches technique(HTML) 32 Page - NXP Semiconductors

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PCF2129
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© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 7 — 19 December 2014
32 of 86
NXP Semiconductors
PCF2129
Accurate RTC with integrated quartz crystal for industrial applications
8.9 Alarm function
When one or more of the alarm bit fields are loaded with a valid second, minute, hour, day,
or weekday and its corresponding alarm enable bit (AE_x) is logic 0, then that information
is compared with the actual second, minute, hour, day, and weekday (see Figure 17).
The generation of interrupts from the alarm function is described in Section 8.12.4.
(1) Only when all enabled alarm settings are matching.
Fig 17. Alarm function block diagram



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