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PCA9534ADGVR Datasheet(PDF) 21 Page - Texas Instruments

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Part # PCA9534ADGVR
Description  REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PDF  35 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCA9534ADGVR Datasheet(HTML) 21 Page - Texas Instruments

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APPLICATION INFORMATION
A2
A1
A0
SDA
SCL
INT
GND
P6
P0
P1
P2
P3
P4
P5
P7
INT
GND
VCC
VCC
(5 V)
VCC
10 kW
10 kW
10 kW
10 kW
2 kW
100 kW
(y3)
Master
Controller
PCA9534A
INT
RESET
Subsystem 2
(e.g., Counter)
Subsystem 3
(e.g., Alarm System)
ALARM
Controlled Device
(e.g., CBT Device)
ENABLE
A
B
VCC
Subsystem 1
(e.g., Temperature Sensor)
SCL
SDA
PCA9534A
REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
SCPS141B – SEPTEMBER 2006 – REVISED MARCH 2007
Figure 14 shows an application in which the PCA9534A can be used.
A.
Device address is configured as 0111100 for this example.
B.
P0, P2, and P3 are configured as outputs.
C.
P1, P4, and P5 are configured as inputs.
D.
P6 and P7 are not used and must be configured as outputs.
Figure 14. Typical Application
21
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