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PCF2127T/2Y Datasheet(PDF) 54 Page - NXP Semiconductors

Part # PCF2127T/2Y
Description  Accurate RTC with integrated quartz crystal for industrial applications
PDF  100 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF2127T/2Y Datasheet(HTML) 54 Page - NXP Semiconductors

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PCF2127
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© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 8 — 19 December 2014
54 of 100
NXP Semiconductors
PCF2127
Accurate RTC with integrated quartz crystal for industrial applications
8.13 Interrupt output, INT
PCF2127 has an interrupt output pin INT which is open-drain, active LOW (requiring a
pull-up resistor if used). Interrupts may be sourced from different places:
• second or minute timer
• countdown timer
When SI, MI, CDTIE, WD_CD[1:0], AIE, TSIE, BIE, BLIE are all disabled, INT remains high-impedance.
Fig 27. Interrupt block diagram



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