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PCA9570DP Datasheet(PDF) 32 Page - NXP Semiconductors |
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PCA9570DP Datasheet(HTML) 32 Page - NXP Semiconductors |
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32 / 32 page ![]() NXP Semiconductors PCA9570 Remote 4-bit general purpose outputs for 1 MHz I2C-bus © NXP Semiconductors N.V. 2014. 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: 17 September 2014 Document identifier: PCA9570 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 24. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 4.1 Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Functional description . . . . . . . . . . . . . . . . . . . 5 7.1 Device address . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.2 Software Reset Call, and device ID addresses 5 7.2.1 Software Reset . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.2.2 Device ID (PCA9570 ID field) . . . . . . . . . . . . . . 7 8 I/O programming . . . . . . . . . . . . . . . . . . . . . . . . 8 8.1 I/O architecture . . . . . . . . . . . . . . . . . . . . . . . . . 8 8.2 Writing to the port (Output mode) . . . . . . . . . . . 8 8.3 Reading from a port (Input mode) . . . . . . . . . . 9 8.4 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 9 9 Application design-in information . . . . . . . . . 10 9.1 I/O expander applications . . . . . . . . . . . . . . . . 10 10 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 11 11 Thermal characteristics . . . . . . . . . . . . . . . . . 11 12 Static characteristics . . . . . . . . . . . . . . . . . . . . 12 12.1 Typical characteristics . . . . . . . . . . . . . . . . . . 13 13 Dynamic characteristics . . . . . . . . . . . . . . . . . 16 14 Power-on reset requirements . . . . . . . . . . . . . 17 15 Parameter measurement information . . . . . . 19 16 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 21 17 Handling information. . . . . . . . . . . . . . . . . . . . 24 18 Soldering of SMD packages . . . . . . . . . . . . . . 24 18.1 Introduction to soldering . . . . . . . . . . . . . . . . . 24 18.2 Wave and reflow soldering . . . . . . . . . . . . . . . 24 18.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 24 18.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 25 19 Soldering: PCB footprints. . . . . . . . . . . . . . . . 26 20 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 29 21 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 29 22 Legal information. . . . . . . . . . . . . . . . . . . . . . . 30 22.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 30 22.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 22.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 22.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 31 23 Contact information . . . . . . . . . . . . . . . . . . . . 31 24 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 |
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