PCA9539APW datasheet(39/39 Pages) NXP

39 / 39 page

NXP Semiconductors

PCA9539A

Low voltage 16-bit I2C-bus I/O port with interrupt and reset

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: salesaddresses@nxp.com

Date of release: 26 September 2012

Document identifier: PCA9539A

Please be aware that important notices concerning this document and the product(s)

described herein, have been included in section ‘Legal information’.

23. Contents

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

Features and benefits . . . . . . . . . . . . . . . . . . . . 2

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

3.1

Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pinning information . . . . . . . . . . . . . . . . . . . . . . 4

5.1

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5.2

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

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

6.1

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

6.2

Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.2.1

Pointer register and command byte . . . . . . . . . 6

6.2.2

Input port register pair (00h, 01h) . . . . . . . . . . . 6

6.2.3

Output port register pair (02h, 03h) . . . . . . . . . 7

6.2.4

Polarity inversion register pair (04h, 05h) . . . . . 7

6.2.5

Configuration register pair (06h, 07h) . . . . . . . . 7

6.3

I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6.4

Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 8

6.5

RESET input . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6.6

Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . . 9

Bus transactions . . . . . . . . . . . . . . . . . . . . . . . . 9

7.1

Writing to the port registers. . . . . . . . . . . . . . . . 9

7.2

Reading the port registers . . . . . . . . . . . . . . . 11

Application design-in information . . . . . . . . . 14

8.1

Minimizing IDD when the I/Os are used

to control LEDs . . . . . . . . . . . . . . . . . . . . . . . . 14

8.2

Power-on reset requirements . . . . . . . . . . . . . 15

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 17

Recommended operating conditions. . . . . . . 17

Thermal characteristics . . . . . . . . . . . . . . . . . 17

Static characteristics . . . . . . . . . . . . . . . . . . . . 18

12.1

Typical characteristics . . . . . . . . . . . . . . . . . . 20

Dynamic characteristics . . . . . . . . . . . . . . . . . 24

Parameter measurement information . . . . . . 25

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 29

Handling information. . . . . . . . . . . . . . . . . . . . 31

Soldering of SMD packages . . . . . . . . . . . . . . 31

17.1

Introduction to soldering . . . . . . . . . . . . . . . . . 31

17.2

Wave and reflow soldering . . . . . . . . . . . . . . . 31

17.3

Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 31

17.4

Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 32

Soldering: PCB footprints. . . . . . . . . . . . . . . . 34

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Revision history . . . . . . . . . . . . . . . . . . . . . . . . 36

Legal information . . . . . . . . . . . . . . . . . . . . . . 37

21.1

Data sheet status . . . . . . . . . . . . . . . . . . . . . . 37

21.2

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

21.3

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 37

21.4

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Contact information . . . . . . . . . . . . . . . . . . . . 38

Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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