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PCF85263ATL/A Datasheet(PDF) 76 Page - NXP Semiconductors

Part # PCF85263ATL/A
Description  Tiny RTC/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input, and I2C-bus
PDF  102 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF85263ATL/A Datasheet(HTML) 76 Page - NXP Semiconductors

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NXP Semiconductors
PCF85263A
Tiny RTC/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input, and I2C-bus
15 Application information
The data sheet values in Figure 44 were obtained using a crystal with an ESR of 60 kΩ. If a crystal with an ESR
of 70 kΩ is used, then the power consumption increases by a few nA and the startup time increases slightly.
PCF85263A
CONTROLLER
TRANSMITTER/
RECEIVER
OSCI
OSCO
VSS
SDA
R
aaa-010565
R
SCL
SDA
(I2C-bus)
SCL
SDA
SCL
INTA
VBAT
VDD
VDD
100 nF
R: pull-up resistor
R =
tr
Cb
CLK
VDD
TS
100 nF
Figure 44. Application diagram for PCF85263A
PCF85263A
All information provided in this document is subject to legal disclaimers.
© 2025 NXP B.V. All rights reserved.
Product data sheet
Rev. 5.4 — 12 December 2025
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