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PCA9549 Datasheet(PDF) 24 Page - NXP Semiconductors |
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PCA9549 Datasheet(HTML) 24 Page - NXP Semiconductors |
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24 / 24 page ![]() Philips Semiconductors PCA9549 Octal bus switch with individually I2C-bus controlled enables © Koninklijke Philips Electronics N.V. 2006. All rights reserved. For more information, please visit: http://www.semiconductors.philips.com. For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com. Date of release: 11 July 2006 Document identifier: PCA9549_1 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 3.1 Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 5.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 Functional description . . . . . . . . . . . . . . . . . . . 5 6.1 Device addressing . . . . . . . . . . . . . . . . . . . . . . 5 6.2 Control register . . . . . . . . . . . . . . . . . . . . . . . . . 5 6.2.1 Control register definition . . . . . . . . . . . . . . . . . 5 6.3 RESET input . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.4 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.5 CBT characteristic over VDD range . . . . . . . . . . 6 7 Characteristics of the I2C-bus. . . . . . . . . . . . . . 8 7.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7.1.1 START and STOP conditions . . . . . . . . . . . . . . 8 7.2 System configuration . . . . . . . . . . . . . . . . . . . . 8 7.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7.4 Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 10 8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 10 9 Static characteristics. . . . . . . . . . . . . . . . . . . . 11 10 Dynamic characteristics . . . . . . . . . . . . . . . . . 13 11 Application information. . . . . . . . . . . . . . . . . . 15 12 Test information . . . . . . . . . . . . . . . . . . . . . . . . 16 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 17 14 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 14.1 Introduction to soldering surface mount packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 14.2 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 20 14.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 20 14.4 Manual soldering . . . . . . . . . . . . . . . . . . . . . . 21 14.5 Package related soldering information . . . . . . 21 15 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 22 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 22 17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 23 17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 23 17.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 17.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 17.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 18 Contact information. . . . . . . . . . . . . . . . . . . . . 23 19 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 |
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