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PCA9554DB Datasheet(PDF) 35 Page - NXP Semiconductors |
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PCA9554DB Datasheet(HTML) 35 Page - NXP Semiconductors |
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35 / 35 page ![]() NXP Semiconductors PCA9554; PCA9554A 8-bit I2C-bus and SMBus I/O port with interrupt © NXP B.V. 2013. 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: 19 March 2013 Document identifier: PCA9554_9554A Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 19. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 3.1 Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 5.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 Functional description . . . . . . . . . . . . . . . . . . . 6 6.1 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.1.1 Command byte . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.1.2 Register 0 - Input Port register . . . . . . . . . . . . . 7 6.1.3 Register 1 - Output Port register. . . . . . . . . . . . 7 6.1.4 Register 2 - Polarity Inversion register . . . . . . . 8 6.1.5 Register 3 - Configuration register . . . . . . . . . . 8 6.2 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 8 6.3 Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.4 I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.5 Device address . . . . . . . . . . . . . . . . . . . . . . . . 10 6.6 Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 10 7 Application design-in information . . . . . . . . . 12 8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 12 9 Static characteristics . . . . . . . . . . . . . . . . . . . . 13 10 Dynamic characteristics . . . . . . . . . . . . . . . . . 14 11 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 16 12 Handling information. . . . . . . . . . . . . . . . . . . . 22 13 Soldering of SMD packages . . . . . . . . . . . . . . 22 13.1 Introduction to soldering . . . . . . . . . . . . . . . . . 22 13.2 Wave and reflow soldering . . . . . . . . . . . . . . . 22 13.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 22 13.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 23 14 Soldering: PCB footprints. . . . . . . . . . . . . . . . 25 15 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 31 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 32 17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 33 17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 33 17.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 17.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 17.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 34 18 Contact information. . . . . . . . . . . . . . . . . . . . . 34 19 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 |
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