PCA9554CBS datasheet(36/36 Pages) NXP

36 / 36 page

NXP Semiconductors

PCA9554B; PCA9554C

Low-voltage 8-bit I2C-bus/SMBus low power I/O port

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

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

Date of release: 19 September 2012

Document identifier: PCA9554B_PCA9554C

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 . . . . . . . . . . . . . . . . . . . . . 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

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

6.3

Interface definition . . . . . . . . . . . . . . . . . . . . . . 6

6.4

6.4.1

Input port register (00h) . . . . . . . . . . . . . . . . . . 6

6.4.2

Output port register (01h) . . . . . . . . . . . . . . . . . 6

6.4.3

Polarity inversion register (02h) . . . . . . . . . . . . 6

6.4.4

Configuration register (03h) . . . . . . . . . . . . . . . 7

6.5

I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6.6

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

6.7

Interrupt output (INT) . . . . . . . . . . . . . . . . . . . . 8

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

7.1

Write commands. . . . . . . . . . . . . . . . . . . . . . . . 9

7.2

Read commands . . . . . . . . . . . . . . . . . . . . . . 10

Application design-in information . . . . . . . . . 11

8.1

Minimizing IDD when the I/Os are used to

control LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8.2

Power-on reset requirements . . . . . . . . . . . . . 12

8.3

Device current consumption with internal

pull-up and pull-down resistors . . . . . . . . . . . . 14

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

Recommended operating conditions. . . . . . . 15

Thermal characteristics . . . . . . . . . . . . . . . . . 15

Static characteristics . . . . . . . . . . . . . . . . . . . . 16

12.1

Typical characteristics . . . . . . . . . . . . . . . . . . 18

Dynamic characteristics . . . . . . . . . . . . . . . . . 22

Parameter measurement information . . . . . . 23

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 26

Handling information. . . . . . . . . . . . . . . . . . . . 28

Soldering of SMD packages . . . . . . . . . . . . . . 28

17.1

Introduction to soldering . . . . . . . . . . . . . . . . . 28

17.2

Wave and reflow soldering . . . . . . . . . . . . . . . 28

17.3

Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 28

17.4

Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 29

Soldering: PCB footprints. . . . . . . . . . . . . . . . 31

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 33

Revision history . . . . . . . . . . . . . . . . . . . . . . . 33

Legal information . . . . . . . . . . . . . . . . . . . . . . 34

21.1

Data sheet status . . . . . . . . . . . . . . . . . . . . . . 34

21.2

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

21.3

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 34

21.4

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Contact information . . . . . . . . . . . . . . . . . . . . 35

Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

PCA9554CBS Datasheet(PDF) 36 Page - NXP Semiconductors

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