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PCA9534A Scheda tecnica(PDF) 22 Page - Texas Instruments

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Il numero della parte PCA9534A
Spiegazioni elettronici  REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PDF  39 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
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PCA9534A Scheda tecnica(HTML) 22 Page - Texas Instruments

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A2
A1
A0
SDA
SCL
INT
GND
GND
P6
P0
P1
P2
P3
P4
P5
P7
INT
GND
VCC
VCC
(5 V)
VCC
10 k
10 k
10 k
10 k
2 k
100 k
( 3)
X
100 k
4.7 k
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
Subsystem 1
(e.g., Temperature Sensor)
SCL
SDA
PCA9534A
SCPS141F – SEPTEMBER 2006 – REVISED JUNE 2010
www.ti.com
APPLICATION INFORMATION
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
22
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Product Folder Link(s): PCA9534A



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