pca9670 NXP Semiconductors, pca9670 Datasheet - Page 28

• Manufacturer Part Number: pca9670
• Description: Pca9670 Remote 8-bit I/o Expander For Fm I?c-bus With Reset
• Manufacturer: NXP Semiconductors

NXP Semiconductors
21. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.1.1
7.2
7.2.1
7.2.2
8
8.1
8.2
8.3
8.4
8.5
9
9.1
9.1.1
9.2
9.3
10
10.1
10.2
11
12
13
14
15
16
16.1
16.2
16.3
16.4
17
18
19
19.1
19.2
19.3
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 5
I/O programming . . . . . . . . . . . . . . . . . . . . . . . 11
Characteristics of the I
Application design-in information . . . . . . . . . 15
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 16
Static characteristics. . . . . . . . . . . . . . . . . . . . 17
Dynamic characteristics . . . . . . . . . . . . . . . . . 18
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 20
Handling information. . . . . . . . . . . . . . . . . . . . 23
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 26
Legal information. . . . . . . . . . . . . . . . . . . . . . . 27
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Device address . . . . . . . . . . . . . . . . . . . . . . . . . 5
Address maps. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Software Reset Call, and device ID addresses. 8
Software Reset . . . . . . . . . . . . . . . . . . . . . . . . . 8
Device ID (PCA9670 ID field) . . . . . . . . . . . . . . 9
Quasi-bidirectional I/O architecture . . . . . . . . 11
Writing to the port (Output mode) . . . . . . . . . . 11
Reading from a port (Input mode) . . . . . . . . . 12
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 12
RESET input . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
START and STOP conditions . . . . . . . . . . . . . 13
System configuration . . . . . . . . . . . . . . . . . . . 14
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 14
Bidirectional I/O expander applications . . . . . 15
High current-drive load applications . . . . . . . . 15
Introduction to soldering . . . . . . . . . . . . . . . . . 23
Wave and reflow soldering . . . . . . . . . . . . . . . 23
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 23
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 24
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 27
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2
C-bus. . . . . . . . . . . . . 13
Remote 8-bit I/O expander for Fm+ I
19.4
20
21
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2007.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
Contact information . . . . . . . . . . . . . . . . . . . . 27
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Document identifier: PCA9670_2
PCA9670
2
Date of release: 17 July 2007
C-bus with reset
All rights reserved.