PCA9846PWJ Datasheet, PDF (32/32 Pages) NXP Semiconductors – 4-channel ultra-low voltage, Fm+ I2C-bus switch with reset

NXP Semiconductors
PCA9846
4-channel ultra-low voltage, Fm+ I²C-bus switch with reset
18. Contents
1
2
3
3.1
4
5
5.1
5.2
6
6.1
6.2
6.2.1
6.2.2
6.3
6.3.1
6.4
6.5
6.6
6.7
7
7.1
7.2
8
9
10
11
12
12.1
12.2
12.3
12.4
13
14
15
16
16.1
16.2
16.3
16.4
17
18
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 5
Device address . . . . . . . . . . . . . . . . . . . . . . . . . 5
Software Reset General Call, and device ID
addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Software Reset . . . . . . . . . . . . . . . . . . . . . . . . . 7
Device ID (PCA9846 ID field) . . . . . . . . . . . . . . 8
Control register . . . . . . . . . . . . . . . . . . . . . . . . . 9
Control register definition . . . . . . . . . . . . . . . . 10
RESET input . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-on reset requirements . . . . . . . . . . . . . 10
Voltage level translation between I²C-buses . 13
Characteristics of the I²C-bus . . . . . . . . . . . . 15
Write commands. . . . . . . . . . . . . . . . . . . . . . . 15
Read commands . . . . . . . . . . . . . . . . . . . . . . 15
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 16
Static characteristics. . . . . . . . . . . . . . . . . . . . 16
Dynamic characteristics . . . . . . . . . . . . . . . . . 19
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 22
Soldering of SMD packages . . . . . . . . . . . . . . 24
Introduction to soldering . . . . . . . . . . . . . . . . . 24
Wave and reflow soldering . . . . . . . . . . . . . . . 24
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 24
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 25
Soldering: PCB footprints. . . . . . . . . . . . . . . . 27
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 29
Legal information. . . . . . . . . . . . . . . . . . . . . . . 30
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 30
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Contact information. . . . . . . . . . . . . . . . . . . . . 31
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP Semiconductors N.V. 2015.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
Date of release: 9 November 2015
Document identifier: PCA9846