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  • TCA6416A: SDA line held low by the device, inconsistent communication.

    Part Number: TCA6416A Hello, We are working with this device on a new design, interfacing with an STM32 microcontroller. We've found that communication with the device is inconsistent, and it appears to enter a fault mode where it holds the SDA line low…

  • TCA6416A: The output can't down to low level.

    Part Number: TCA6416A Hello, I have issue with P00 - P17 outputs. 1. The P00 used as output with 2.2KOhm Pull Up resistor. Connected to 3.3v power supply The other circuit on this output disconnected for this test. In this setup the output can't down…

  • TCA6416A: Schematic Review

    TI Thinks Resolved
    Part Number: TCA6416A Hi Team , Please review the attached schematic of I2C based GPIO Expander : Pull-up of value 10k has been added on all signals which are to be used as input ports . Thanks, Manoj
    • Answered

  • TCA6416A: No ACK from TCA6416A

    Resolved
    Part Number: TCA6416A Other Parts Discussed in Thread: TCA6408A , , TCA9548A Hello, I am having the same problem as "user4646208": No ACK (SDA is high on ACK clock pulse) from a TCA6416A as well as a TCA6408A device. Both devices are connected…
    • Resolved

  • TCA6416A: thermal pad size

    TI Thinks Resolved
    Part Number: TCA6416A Hi Team, Customer is looking for alternative of PCAL6416AHF and I am proposing the TCA6416A. and they would like to confirm if the difference is only the thermal pad size? please help to comment. Thanks! Patty

  • TCA6416A: Inquiry about P port current and so on

    Part Number: TCA6416A Other Parts Discussed in Thread: TCA6424A , Hi Expert, I want to know something about TCA6416A and TCA6424A. * Questions 1. As I know, this device can't support ADC. Below is our customer's question. Can the P port support…
    • Answered

  • TCA6416A: Set P00 to P17 to known state before I2C access to set as output.

    Resolved
    Part Number: TCA6416A Dear Sir/Madam, On page 17 of the datasheet "At power on or after a reset, the I/Os are configured as inputs." If P00 to P17 are all used as outputs and the outputs need to be in a defined state before I2C access to set…
    • Resolved

  • TCA6416A: Letter of Volatility

    TI Thinks Resolved
    Part Number: TCA6416A Hi team, Good day. Please help us fill out the form attached provided by the customer. Thank you. 6431.Letter of Volatility.docx Regards, Carlo
    • Answered

  • TCA6416A: I/O expander with bus isolation

    Resolved
    Part Number: Hi Support Team, In our application (battery powered), we have multiple boards, the host μC resides on board A. on Board B, I have I/O lines for status monitoring and control and I was looking at TCA6416A. Now, if I understand correctly…
    • Resolved
    • Answered

  • TCA6416A: Need a SPI version io-expander, similar with TCA6416A

    Resolved
    Part Number: TCA6416A Hi, Please recommend a io expander device , spi interface, similar with TCA6416A. Thanks.
    • Resolved

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