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| TCA9554_15 Datasheet, PDF (14/38 Pages) Texas Instruments – TCA9554 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers | |||
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TCA9554
SCPS233D â MARCH 2012 â REVISED AUGUST 2015
8.2 Functional Block Diagram
13
INT
1
A0
2
A1
3
A2
14
SCL
15
SDA
Input
Filter
LP Filter
I2C Bus
Control
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Interrupt
Logic
Shift
Register
8 Bits
I/O
Port
P7âP0
16
VCC
GND
8
Power-On
Reset
Write Pulse
Read Pulse
A. Pin numbers shown are for the PW package.
Figure 13. Functional Block Diagram
14
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