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PCA9502 датащи(PDF) 25 Page - NXP Semiconductors

номер детали PCA9502
подробное описание детали  8-bit I/O expander with I2C-bus/SPI interface
PDF  25 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
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PCA9502 датащи(HTML) 25 Page - NXP Semiconductors

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NXP Semiconductors
PCA9502
8-bit I/O expander with I2C-bus/SPI interface
© NXP B.V. 2006.
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: 13 October 2006
Document identifier: PCA9502_3
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
2.1
General features . . . . . . . . . . . . . . . . . . . . . . . . 1
2.2
I2C-bus features . . . . . . . . . . . . . . . . . . . . . . . . 1
2.3
SPI 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 . . . . . . . . . . . . . . . . . . . . . . . . . 3
7
Functional description . . . . . . . . . . . . . . . . . . . 4
7.1
Hardware reset, Power-On Reset (POR) and
software reset . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.2
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8
Register descriptions . . . . . . . . . . . . . . . . . . . . 5
8.1
Programmable I/O pins Direction register
(IODir) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8.2
Programmable I/O pins State register
(IOState) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
8.3
I/O Interrupt Enable register (IOIntEna) . . . . . . 6
8.4
I/O Control register (IOControl). . . . . . . . . . . . . 6
9I2C-bus operation . . . . . . . . . . . . . . . . . . . . . . . . 7
9.1
Data transfers . . . . . . . . . . . . . . . . . . . . . . . . . . 7
9.2
Addressing and transfer formats. . . . . . . . . . . . 8
9.3
Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.4
Use of sub-addresses. . . . . . . . . . . . . . . . . . . 11
10
SPI operation . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 13
12
Static characteristics. . . . . . . . . . . . . . . . . . . . 14
13
Dynamic characteristics . . . . . . . . . . . . . . . . . 15
14
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 19
15
Handling information. . . . . . . . . . . . . . . . . . . . 20
16
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
16.1
Introduction to soldering . . . . . . . . . . . . . . . . . 20
16.2
Wave and reflow soldering . . . . . . . . . . . . . . . 20
16.3
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 20
16.4
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 21
17
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 22
18
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 23
19
Legal information. . . . . . . . . . . . . . . . . . . . . . . 24
19.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 24
19.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
19.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
19.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 24
20
Contact information . . . . . . . . . . . . . . . . . . . . 24
21
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25



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