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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
P13
P11
P15
P17
A0
Vcc
SDA
SCL
P16
P14
P10
Name
Pin #
Type
Part Type
Terminal Order
INT
1
Unspecified
Terminal
A1
2
Unspecified
Terminal
A2
3
Unspecified
Terminal
P00
4
Unspecified
Terminal
P01
5
Unspecified
Terminal
P02
6
Unspecified
Terminal
P03
7
Unspecified
Terminal
P04
8
Unspecified
Terminal
P05
9
Unspecified
Terminal
P06
10
Unspecified
Terminal
P07
11
Unspecified
Terminal
GND
12
Unspecified
Terminal
P10
13
Unspecified
Terminal
P11
14
Unspecified
Terminal
P12
15
Unspecified
Terminal
P13
16
Unspecified
Terminal
P14
17
Unspecified
Terminal
P15
18
Unspecified
Terminal
P16
19
Unspecified
Terminal
P17
20
Unspecified
Terminal
A0
21
Unspecified
Terminal
SCL
22
Unspecified
Terminal
SDA
23
Unspecified
Terminal

TCA9555DBT