PCA9675BS NXP [NXP Semiconductors], PCA9675BS Datasheet - Page 34

• Manufacturer Part Number: PCA9675BS
• Description: Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt
• Manufacturer: NXP [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
10.3
11
12
13
14
15
16
16.1
16.2
16.3
16.4
17
18
19
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 6
I/O programming . . . . . . . . . . . . . . . . . . . . . . . 12
Characteristics of the I
Application design-in information . . . . . . . . . 19
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 20
Static characteristics. . . . . . . . . . . . . . . . . . . . 21
Dynamic characteristics . . . . . . . . . . . . . . . . . 22
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 24
Handling information. . . . . . . . . . . . . . . . . . . . 30
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 32
Legal information. . . . . . . . . . . . . . . . . . . . . . . 33
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Device address . . . . . . . . . . . . . . . . . . . . . . . . . 6
Address maps. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Software Reset call, and Device
ID addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Software Reset . . . . . . . . . . . . . . . . . . . . . . . . . 9
Device ID (PCA9675 ID field) . . . . . . . . . . . . . 10
Quasi-bidirectional I/O architecture . . . . . . . . 12
Writing to the port (Output mode) . . . . . . . . . . 12
Reading from a port (Input mode) . . . . . . . . . 13
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 16
Interrupt output (INT) . . . . . . . . . . . . . . . . . . . 16
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
START and STOP conditions . . . . . . . . . . . . . 17
System configuration . . . . . . . . . . . . . . . . . . . 17
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 18
Bidirectional I/O expander applications . . . . . 19
High current-drive load applications . . . . . . . . 19
Differences between the PCA9675 and
the PCF8575. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Introduction to soldering . . . . . . . . . . . . . . . . . 30
Wave and reflow soldering . . . . . . . . . . . . . . . 30
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 30
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 31
2
C-bus. . . . . . . . . . . . . 17
Remote 16-bit I/O expander for Fm+ I
19.1
19.2
19.3
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 . . . . . . . . . . . . . . . . . . . . 33
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 33
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2
C-bus with interrupt
Document identifier: PCA9675_1
Date of release: 1 February 2007
PCA9675
All rights reserved.