NXP Semiconductors
PCF2127
Accurate RTC with integrated quartz crystal for industrial applications
15. Application information
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Ci: In case mechanical switches are used, a capacitor of 1 nF is recommended.
R1, R2: Voltage dividers for setting the power-fail level.
RPU: For example, 10 k.
Fig 57. General application diagram
For information about application configuration, see Ref. 3 “AN11266” on page 92
16. Test information
16.1 Quality information
UL Component Recognition
This (component or material) is Recognized by UL. Representative samples of this
component have been evaluated by UL and meet applicable UL requirements.
PCF2127
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 19 December 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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