pca9646 NXP Semiconductors, pca9646 Datasheet - Page 22

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pca9646

Manufacturer Part Number
pca9646
Description
Pca9646 Buffered 4-channel 2-wire Bus Switch
Manufacturer
NXP Semiconductors
Datasheet
NXP Semiconductors
20. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
8
9
10
11
12
13
14
14.1
14.2
14.3
14.4
15
16
17
18
18.1
18.2
18.3
18.4
19
20
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 4
Bus transaction . . . . . . . . . . . . . . . . . . . . . . . . . 6
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application information. . . . . . . . . . . . . . . . . . 10
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 14
Handling information. . . . . . . . . . . . . . . . . . . . 16
Soldering of SMD packages . . . . . . . . . . . . . . 16
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 18
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 19
Legal information. . . . . . . . . . . . . . . . . . . . . . . 20
Contact information. . . . . . . . . . . . . . . . . . . . . 21
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
V
SC0, SC1, SC2, SC3 — clock signal outputs. . 4
SDA, SD0, SD1, SD2, SD3 — data signal
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
SCL — clock signal input . . . . . . . . . . . . . . . . . 4
inputs/outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RESET — reset IC to default state . . . . . . . . . . 5
Power-On Reset (POR) . . . . . . . . . . . . . . . . . . 5
A0, A1, A2 — address lines . . . . . . . . . . . . . . . 5
Control register . . . . . . . . . . . . . . . . . . . . . . . . . 5
Introduction to soldering . . . . . . . . . . . . . . . . . 16
Wave and reflow soldering . . . . . . . . . . . . . . . 16
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 17
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 17
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 20
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DD
, V
SS
— DC supply pins . . . . . . . . . . . . . . . 4
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. 2011.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Buffered 4-channel 2-wire bus switch
PCA9646
Document identifier: PCA9646
Date of release: 1 March 2011
All rights reserved.

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