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NXP Semiconductors
PCA9533
4-bit I 2 C-bus LED dimmer
20. Contents
1
2
3
3.1
4
5
5.1
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
18
18.1
18.2
18.3
18.4
19
20
Legal information . . . . . . . . . . . . . . . . . . . . . .
Data sheet status . . . . . . . . . . . . . . . . . . . . . .
De?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact information . . . . . . . . . . . . . . . . . . . .
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
23
23
23
23
23
24
5.2
6
6.1
6.2
6.2.1
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.4
6.5
7
7.1
7.1.1
7.2
7.3
7.4
8
8.1
8.2
9
10
11
12
13
14
15
15.1
15.2
15.3
15.4
16
17
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 4
Device address . . . . . . . . . . . . . . . . . . . . . . . . . 4
Control register . . . . . . . . . . . . . . . . . . . . . . . . . 4
Control register de?nition . . . . . . . . . . . . . . . . . 5
Register descriptions . . . . . . . . . . . . . . . . . . . . 5
INPUT - Input register. . . . . . . . . . . . . . . . . . . . 5
PCS0 - Frequency Prescaler 0 . . . . . . . . . . . . . 5
PWM0 - Pulse Width Modulation 0 . . . . . . . . . . 5
PCS1 - Frequency Prescaler 1 . . . . . . . . . . . . . 6
PWM1 - Pulse Width Modulation 1 . . . . . . . . . . 6
LS0 - LED selector . . . . . . . . . . . . . . . . . . . . . . 6
Pins used as GPIOs . . . . . . . . . . . . . . . . . . . . . 7
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 7
Characteristics of the I 2 C-bus. . . . . . . . . . . . . . 8
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
START and STOP conditions . . . . . . . . . . . . . . 8
System con?guration . . . . . . . . . . . . . . . . . . . . 8
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 10
Application design-in information . . . . . . . . . 11
Minimizing I DD when the I/Os are used to
control LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Programming example . . . . . . . . . . . . . . . . . . 12
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 12
Static characteristics. . . . . . . . . . . . . . . . . . . . 13
Dynamic characteristics . . . . . . . . . . . . . . . . . 15
Test information . . . . . . . . . . . . . . . . . . . . . . . . 16
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 17
Handling information. . . . . . . . . . . . . . . . . . . . 19
Soldering of SMD packages . . . . . . . . . . . . . . 19
Introduction to soldering . . . . . . . . . . . . . . . . . 19
Wave and re?ow soldering . . . . . . . . . . . . . . . 19
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 19
Re?ow soldering . . . . . . . . . . . . . . . . . . . . . . . 20
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 22
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
? NXP B.V. 2009.
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 April 2009
Document identifier: PCA9533_3
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