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PCA2000U/AB датащи(PDF) 28 Page - NXP Semiconductors

номер детали PCA2000U/AB
подробное описание детали  32 kHz watch circuit with programmable adaptive motor pulse
PDF  28 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA2000U/AB датащи(HTML) 28 Page - NXP Semiconductors

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NXP Semiconductors
PCA2000; PCA2001
32 kHz watch circuit with programmable adaptive motor pulse
© NXP B.V. 2008.
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: 11 November 2008
Document identifier: PCA2000_2001_5
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
17. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7
Functional description . . . . . . . . . . . . . . . . . . . 4
7.1
Motor pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.2
Step detection. . . . . . . . . . . . . . . . . . . . . . . . . . 5
7.3
Time calibration . . . . . . . . . . . . . . . . . . . . . . . . 7
7.4
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.5
Programming possibilities. . . . . . . . . . . . . . . . . 8
7.6
Type recognition . . . . . . . . . . . . . . . . . . . . . . . 10
7.7
Programming procedure . . . . . . . . . . . . . . . . . 10
7.8
Programming the memory cells . . . . . . . . . . . 11
7.9
Checking memory content . . . . . . . . . . . . . . . 12
7.10
Frequency tuning of assembled watch . . . . . . 13
7.11
Measurement of oscillator frequency and
inhibition time . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.12
Customer testing. . . . . . . . . . . . . . . . . . . . . . . 14
7.13
EOL of battery . . . . . . . . . . . . . . . . . . . . . . . . 14
8
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 15
9
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 16
10
OTP programming characteristics . . . . . . . . . 17
11
Bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 18
12
Packing information. . . . . . . . . . . . . . . . . . . . . 20
12.1
Tray information . . . . . . . . . . . . . . . . . . . . . . . 20
12.2
Unsawn wafer information . . . . . . . . . . . . . . . 22
13
Soldering of SMD packages . . . . . . . . . . . . . . 23
13.1
Introduction to soldering . . . . . . . . . . . . . . . . . 23
13.2
Wave and reflow soldering . . . . . . . . . . . . . . . 23
13.3
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 23
13.4
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 24
14
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 26
15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 27
15.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 27
15.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
15.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
15.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
16
Contact information. . . . . . . . . . . . . . . . . . . . . 27
17
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28



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