© Koninklijke Philips Electronics N.V. 2006

All rights are reserved. Reproduction in whole or in part is prohibited without the prior

written consent of the copyright owner. The information presented in this document does

not form part of any quotation or contract, is believed to be accurate and reliable and may

be changed without notice. No liability will be accepted by the publisher for any

consequence of its use. Publication thereof does not convey nor imply any license under

patent- or other industrial or intellectual property rights.

Date of release: 9 March 2006

Document number: PCA9552_5

Published in The Netherlands

Philips Semiconductors

PCA9552

23. Contents

1

General description . . . . . . . . . . . . . . . . . . . . . . 1

2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3

Ordering information . . . . . . . . . . . . . . . . . . . . . 2

4

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2

5

Pinning information . . . . . . . . . . . . . . . . . . . . . . 3

5.1

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5.2

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4

6

Functional description . . . . . . . . . . . . . . . . . . . 5

6.1

Device address . . . . . . . . . . . . . . . . . . . . . . . . . 5

6.2

Control Register . . . . . . . . . . . . . . . . . . . . . . . . 5

6.2.1

Control Register definition . . . . . . . . . . . . . . . . 6

6.3

Register descriptions . . . . . . . . . . . . . . . . . . . . 6

6.3.1

INPUT0 - Input register 0 . . . . . . . . . . . . . . . . . 6

6.3.2

INPUT1 - Input register 1 . . . . . . . . . . . . . . . . . 6

6.3.3

PCS0 - Frequency Prescaler 0 . . . . . . . . . . . . . 7

6.3.4

PWM0 - Pulse Width Modulation 0 . . . . . . . . . . 7

6.3.5

PCS1 - Frequency Prescaler 1 . . . . . . . . . . . . . 7

6.3.6

PWM1 - Pulse Width Modulation 1 . . . . . . . . . . 7

6.3.7

LS0 to LS3 - LED selector registers . . . . . . . . . 8

6.4

Pins used as GPIOs . . . . . . . . . . . . . . . . . . . . . 9

6.5

Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 9

6.6

External RESET . . . . . . . . . . . . . . . . . . . . . . . . 9

7

Characteristics of the I2C-bus. . . . . . . . . . . . . 10

7.1

Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.1.1

START and STOP conditions . . . . . . . . . . . . . 10

7.2

System configuration . . . . . . . . . . . . . . . . . . . 10

7.3

Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 11

7.4

Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 12

8

Application design-in information . . . . . . . . . 13

8.1

Minimizing IDD when the I/O is used to control

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8.2

Programming example . . . . . . . . . . . . . . . . . . 14

9

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 15

10

Static characteristics. . . . . . . . . . . . . . . . . . . . 15

11

Dynamic characteristics . . . . . . . . . . . . . . . . . 17

12

Test information . . . . . . . . . . . . . . . . . . . . . . . . 19

13

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 20

14

Handling information. . . . . . . . . . . . . . . . . . . . 23

15

Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

15.1

Introduction to soldering surface mount

packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

15.2

Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 23

15.3

Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 23

15.4

Manual soldering . . . . . . . . . . . . . . . . . . . . . . 24

15.5

Package related soldering information . . . . . . 24

16

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 25

17

Revision history . . . . . . . . . . . . . . . . . . . . . . . 26

18

Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 27

19

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

20

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

21

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

22

Contact information . . . . . . . . . . . . . . . . . . . . 27