PCAL9535APW datasheet(46/46 Pages) NXP

46 / 46 page

NXP Semiconductors

PCAL9535A

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

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

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

Date of release: 28 September 2012

Document identifier: PCAL9535A

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

2.1

Agile I/O features . . . . . . . . . . . . . . . . . . . . . . . 2

Ordering information . . . . . . . . . . . . . . . . . . . . . 3

3.1

Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 3

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6.2.1

Pointer register and command byte . . . . . . . . . 5

6.2.2

Input port register pair (00h, 01h) . . . . . . . . . . . 7

6.2.3

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

6.2.4

Polarity inversion register pair (04h, 05h) . . . . . 8

6.2.5

Configuration register pair (06h, 07h) . . . . . . . . 8

6.2.6

Output drive strength register pairs

(40h, 41h, 42h, 43h) . . . . . . . . . . . . . . . . . . . . . 9

6.2.7

Input latch register pair (44h, 45h) . . . . . . . . . . 9

6.2.8

Pull-up/pull-down enable register pair

(46h, 47h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6.2.9

Pull-up/pull-down selection register pair

(48h, 49h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6.2.10

Interrupt mask register pair (4Ah, 4Bh). . . . . . 11

6.2.11

Interrupt status register pair (4Ch, 4Dh) . . . . . 12

6.2.12

Output port configuration register (4Fh) . . . . . 12

6.3

I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.4

Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 13

6.5

Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . 14

Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 14

7.1

Writing to the port registers. . . . . . . . . . . . . . . 14

7.2

Reading the port registers . . . . . . . . . . . . . . . 16

Application design-in information . . . . . . . . . 20

8.1

Minimizing IDD when the I/Os are used

to control LEDs . . . . . . . . . . . . . . . . . . . . . . . . 20

8.2

Output drive strength control . . . . . . . . . . . . . 21

8.3

Power-on reset requirements . . . . . . . . . . . . . 22

8.4

Device current consumption with internal

pull-up and pull-down resistors . . . . . . . . . . . . 24

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 25

Recommended operating conditions. . . . . . . 25

Thermal characteristics . . . . . . . . . . . . . . . . . 25

Static characteristics . . . . . . . . . . . . . . . . . . . . 26

12.1

Typical characteristics . . . . . . . . . . . . . . . . . . 28

Dynamic characteristics. . . . . . . . . . . . . . . . . 32

Parameter measurement information . . . . . . 33

Package outline. . . . . . . . . . . . . . . . . . . . . . . . 36

Handling information . . . . . . . . . . . . . . . . . . . 38

Soldering of SMD packages . . . . . . . . . . . . . . 38

17.1

Introduction to soldering. . . . . . . . . . . . . . . . . 38

17.2

Wave and reflow soldering. . . . . . . . . . . . . . . 38

17.3

Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 38

17.4

Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 39

Soldering: PCB footprints . . . . . . . . . . . . . . . 41

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 43

Revision history . . . . . . . . . . . . . . . . . . . . . . . 43

Legal information . . . . . . . . . . . . . . . . . . . . . . 44

21.1

Data sheet status . . . . . . . . . . . . . . . . . . . . . . 44

21.2

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

21.3

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 44

21.4

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Contact information . . . . . . . . . . . . . . . . . . . . 45

Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

PCAL9535APW Datasheet(PDF) 46 Page - NXP Semiconductors

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