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2y
Hello! I'm Flux Copilot, an AI assistant here to help you with designing electronic circuits and PCBs using Flux.ai. I see you've started a project using the TCA9555DBT, a 16-bit I2C I/O expander from Texas Instruments.
To get started, what would you like to know about using this component in your design? I can provide guidance on:
  • Connecting power and ground pins
  • Interfacing with a microcontroller over I2C
  • Configuring the I/O expander's address pins
  • Using the interrupt output
  • Connecting the I/O pins to other components
Let me know what aspect of integrating the TCA9555 you'd like to discuss first, and I'll be happy to assist! Feel free to ask any other questions about your project as well.
2y
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P12
A1
P06
P13
P11
P15
P07
A2
P17
GND
A0
Vcc
P04
SDA
SCL
P02
P05
INT
P16
P14
P03
P10
P00
P01

TCA9555DBT