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PCF85263ATL/A Datasheet(PDF) 100 Page - NXP Semiconductors

Part # PCF85263ATL/A
Description  Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus
PDF  100 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF85263ATL/A Datasheet(HTML) 100 Page - NXP Semiconductors

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NXP Semiconductors
PCF85263A
Tiny RTC with alarm, battery switch-over, and I2C-bus
© NXP Semiconductors N.V. 2015.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 27 November 2015
Document identifier: PCF85263A
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
8.14
Flags register . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.15
Reset register . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.15.1
SR - Software reset . . . . . . . . . . . . . . . . . . . . 58
8.15.2
CPR: clear prescaler . . . . . . . . . . . . . . . . . . . 60
8.15.3
CTS: clear timestamp . . . . . . . . . . . . . . . . . . 60
8.16
Stop_enable register. . . . . . . . . . . . . . . . . . . . 60
9
I2C-bus interface . . . . . . . . . . . . . . . . . . . . . . . 63
9.1
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.2
START and STOP conditions . . . . . . . . . . . . . 64
9.3
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 64
10
Interface protocol . . . . . . . . . . . . . . . . . . . . . . 65
10.1
Write protocol . . . . . . . . . . . . . . . . . . . . . . . . . 65
10.2
Read protocol . . . . . . . . . . . . . . . . . . . . . . . . . 65
10.3
Slave addressing . . . . . . . . . . . . . . . . . . . . . . 66
10.3.1
Slave address . . . . . . . . . . . . . . . . . . . . . . . . . 66
11
Application design-in information . . . . . . . . . 67
12
Internal circuitry. . . . . . . . . . . . . . . . . . . . . . . . 69
13
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
14
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 70
15
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 71
16
Application information. . . . . . . . . . . . . . . . . . 77
17
Test information . . . . . . . . . . . . . . . . . . . . . . . . 78
17.1
Quality information . . . . . . . . . . . . . . . . . . . . . 78
18
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 79
19
Handling information. . . . . . . . . . . . . . . . . . . . 83
20
Packing information . . . . . . . . . . . . . . . . . . . . 83
21
Soldering of SMD packages . . . . . . . . . . . . . . 83
21.1
Introduction to soldering . . . . . . . . . . . . . . . . . 83
21.2
Wave and reflow soldering . . . . . . . . . . . . . . . 83
21.3
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 84
21.4
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 84
22
Footprint information . . . . . . . . . . . . . . . . . . . 86
23
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
23.1
Real-Time Clock selection . . . . . . . . . . . . . . . 90
24
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 92
25
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
26
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 93
27
Legal information. . . . . . . . . . . . . . . . . . . . . . . 94
27.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 94
27.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
27.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
27.4
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 95
28
Contact information. . . . . . . . . . . . . . . . . . . . . 95
29
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
30
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
31
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99



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