| Electronic Components Datasheet Search |
|
PCA8574ATS Datasheet(PDF) 27 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
PCA8574ATS Datasheet(HTML) 27 Page - NXP Semiconductors |
|
27 / 27 page ![]() NXP Semiconductors PCA8574/74A Remote 8-bit I/O expander for I2C-bus with interrupt © NXP B.V. 2007. 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: 14 May 2007 Document identifier: PCA8574_PCA8574A_2 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 21. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Functional description . . . . . . . . . . . . . . . . . . . 6 7.1 Device address . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.1.1 Address maps. . . . . . . . . . . . . . . . . . . . . . . . . . 6 8 I/O programming . . . . . . . . . . . . . . . . . . . . . . . . 7 8.1 Quasi-bidirectional I/O architecture . . . . . . . . . 7 8.2 Writing to the port (Output mode) . . . . . . . . . . . 7 8.3 Reading from a port (Input mode) . . . . . . . . . . 8 8.4 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 9 8.5 Interrupt output (INT) . . . . . . . . . . . . . . . . . . . . 9 9 Characteristics of the I2C-bus. . . . . . . . . . . . . 10 9.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 9.1.1 START and STOP conditions . . . . . . . . . . . . . 10 9.2 System configuration . . . . . . . . . . . . . . . . . . . 10 9.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 11 10 Application design-in information . . . . . . . . . 12 10.1 Bidirectional I/O expander applications . . . . . 12 10.2 High current-drive load applications . . . . . . . . 12 11 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 13 12 Static characteristics. . . . . . . . . . . . . . . . . . . . 14 13 Dynamic characteristics . . . . . . . . . . . . . . . . . 15 14 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 17 15 Handling information. . . . . . . . . . . . . . . . . . . . 21 16 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 16.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 21 16.2 Through-hole mount packages . . . . . . . . . . . . 21 16.2.1 Soldering by dipping or by solder wave . . . . . 21 16.2.2 Manual soldering . . . . . . . . . . . . . . . . . . . . . . 21 16.3 Surface mount packages . . . . . . . . . . . . . . . . 21 16.3.1 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 21 16.3.2 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 23 16.3.3 Manual soldering . . . . . . . . . . . . . . . . . . . . . . 23 16.4 Package related soldering information . . . . . . 23 17 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 25 18 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 25 19 Legal information . . . . . . . . . . . . . . . . . . . . . . 26 19.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 26 19.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 19.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 26 19.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 26 20 Contact information . . . . . . . . . . . . . . . . . . . . 26 21 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |