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PCA9501 Datasheet(PDF) 28 Page - NXP Semiconductors |
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PCA9501 Datasheet(HTML) 28 Page - NXP Semiconductors |
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28 / 28 page ![]() NXP Semiconductors PCA9501 8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM © NXP B.V. 2009. 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: 10 February 2009 Document identifier: PCA9501_4 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 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 4.1 Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Functional description . . . . . . . . . . . . . . . . . . . 5 7.1 Device addressing . . . . . . . . . . . . . . . . . . . . . . 5 7.2 Control register . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.3 I/O operations . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.3.1 Quasi-bidirectional I/Os . . . . . . . . . . . . . . . . . . 7 7.3.2 Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.4 Memory operations . . . . . . . . . . . . . . . . . . . . . . 8 7.4.1 Write operations . . . . . . . . . . . . . . . . . . . . . . . . 8 7.4.1.1 Byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7.4.1.2 Page write. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7.4.2 Read operations . . . . . . . . . . . . . . . . . . . . . . . . 9 7.4.2.1 Current address read . . . . . . . . . . . . . . . . . . . . 9 7.4.2.2 Random read . . . . . . . . . . . . . . . . . . . . . . . . . 10 7.4.2.3 Sequential read. . . . . . . . . . . . . . . . . . . . . . . . 10 8 Characteristics of the I2C-bus. . . . . . . . . . . . . 11 8.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8.1.1 START and STOP conditions . . . . . . . . . . . . . 11 8.2 System configuration . . . . . . . . . . . . . . . . . . . 11 8.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 Application design-in information . . . . . . . . . 13 10 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 14 11 Static characteristics. . . . . . . . . . . . . . . . . . . . 15 12 Dynamic characteristics . . . . . . . . . . . . . . . . . 17 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 19 14 Soldering of SMD packages . . . . . . . . . . . . . . 22 14.1 Introduction to soldering . . . . . . . . . . . . . . . . . 22 14.2 Wave and reflow soldering . . . . . . . . . . . . . . . 22 14.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 22 14.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 23 15 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 24 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 25 17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 27 17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 27 17.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 17.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 17.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 18 Contact information . . . . . . . . . . . . . . . . . . . . 27 19 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 |
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