Datasheet

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APPLICATION INFORMATION
SD0
12
13
11
3
5
9
6
10
4
8
2
7
1
SC0
PCA9543A
V
CC
=2.7Vto5.5V
V
CC
=2.7Vto5.5V
Channel0
Channel1
SeeNote A
SeeNote A
SDA
SCL
V
CC
SDA
SCL
I C/SMBus
Master
2
V =3.3V
CC
V =2.7Vto5.5V
CC
INT
INT0
SD1
SC1
INT1
RESET
A1
GND
A0
NOTE: A.
B. PinnumbersshownarefortheDandPWpackages.
Ifthedevicegeneratingtheinterrupthasanopen-drainoutputstructureorcanbe3-stated,a
pullupresistorisrequired.
Ifthedevicegeneratingtheinterrupthasatotem-poleoutputstructureandcannotbe3-stated,
apullupresistorisnotrequired.
Theinterruptinputsshouldnotbeleftfloating.
PCA9543A
TWO-CHANNEL I
2
C-BUS SWITCH
WITH INTERRUPT LOGIC AND RESET
SCPS169 – SEPTEMBER 2007
Figure 14 shows an application in which the PCA9543A can be used.
Figure 14. Typical Application
14 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): PCA9543A