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PCA9674ATS Datasheet(PDF) 34 Page - NXP Semiconductors

Part # PCA9674ATS
Description  Remote 8-bit I/O expander for Fm I2C-bus with interrupt
PDF  34 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9674ATS Datasheet(HTML) 34 Page - NXP Semiconductors

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NXP Semiconductors
PCA9674/74A
Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
© 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: 12 October 2006
Document identifier: PCA9674_PCA9674A_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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
7
Functional description . . . . . . . . . . . . . . . . . . . 6
7.1
Device address . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.1.1
Address maps. . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.2
Software Reset Call, and device ID addresses 10
7.2.1
Software Reset . . . . . . . . . . . . . . . . . . . . . . . . 11
7.2.2
Device ID (PCA9674/74A ID field) . . . . . . . . . 12
8
I/O programming . . . . . . . . . . . . . . . . . . . . . . . 13
8.1
Quasi-bidirectional I/O architecture . . . . . . . . 13
8.2
Writing to the port (Output mode) . . . . . . . . . . 13
8.3
Reading from a port (Input mode) . . . . . . . . . 14
8.4
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 15
8.5
Interrupt output (INT) . . . . . . . . . . . . . . . . . . . 15
9
Characteristics of the I2C-bus. . . . . . . . . . . . . 16
9.1
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9.1.1
START and STOP conditions . . . . . . . . . . . . . 16
9.2
System configuration . . . . . . . . . . . . . . . . . . . 16
9.3
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 17
10
Application design-in information . . . . . . . . . 18
10.1
Bidirectional I/O expander applications . . . . . 18
10.2
High current-drive load applications . . . . . . . . 18
11
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 19
12
Static characteristics. . . . . . . . . . . . . . . . . . . . 20
13
Dynamic characteristics . . . . . . . . . . . . . . . . . 21
14
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 23
15
Handling information. . . . . . . . . . . . . . . . . . . . 28
16
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
16.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 28
16.2
Through-hole mount packages . . . . . . . . . . . . 28
16.2.1
Soldering by dipping or by solder wave . . . . . 28
16.2.2
Manual soldering . . . . . . . . . . . . . . . . . . . . . . 28
16.3
Surface mount packages . . . . . . . . . . . . . . . . 28
16.3.1
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 28
16.3.2
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 30
16.3.3
Manual soldering . . . . . . . . . . . . . . . . . . . . . . 30
16.4
Package related soldering information . . . . . . 30
17
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 31
18
Revision history . . . . . . . . . . . . . . . . . . . . . . . 32
19
Legal information . . . . . . . . . . . . . . . . . . . . . . 33
19.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 33
19.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
19.3
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 33
19.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 33
20
Contact information . . . . . . . . . . . . . . . . . . . . 33
21
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34



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