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Showing 35 results View by: Thread Post Sort by

  • TCAL6416: IO expansion chip

    Part Number: TCAL6416 Tool/software: Is there any difference in the I2C communication of TCAL6416 compared to others? Why is my host unable to communicate with it? I have connected the RESET pin to high level and the ADDR pin to GND. VDD(I2C-bus) and…
    • Answered

  • TCAL6416: Are there power sequences for VCCI and VCCP?

    Resolved
    Part Number: TCAL6416 Other Parts Discussed in Thread: TCA6416A Tool/software: Hi team, 1. May I know if there are any power sequences of VCCI and VCCP? Which one should be powered up first? Best regards, Shunsuke Yamamoto
    • Resolved

  • RE: TCAL6416: Translating I2C Bus Sticky Reset Functionality

    Hi Michael, I figured out the confusion. Michael Boyd said: (Page 9): The system controller can re-initialize I2C/SMBus state machine in the event of a timeout or other improper operation by asserting a low on the RESET input pin without resetting the sticky…
    • Answered

  • TCAL6416: The bevaior of INT pin and interrupt mask registers

    Resolved
    Part Number: TCAL6416 Tool/software: Hi team, I don't quit understand the relationship between INT pin and interrupt mask registers and interrupt status registers. When the interrupt mask register is set to 0 and the input changes state from 0 to 1,…
    • Resolved
    • Answered

  • TCAL6416: Schematic review of TCAL6416PWR

    Resolved
    Part Number: TCAL6416 Tool/software: Hi, We have used TCAL6416PWR in one of our projects. Can anyone from please verify the schematic & let us know if its OK or needs some modifications.
    • Resolved
    • Answered

  • TCAL6416: Schematic review of TCAL6416PWR

    Resolved
    Part Number: TCAL6416 Other Parts Discussed in Thread: TPS22960 , , PCF8574 , TCA9554 , TCA9554A , TCA9555 , PCF8574A , PCA9554A , PCA9555 , PCA9554 , PCF8575 Tool/software: Hello, We have used TPS22960 in our project. We have made schematic as per reference circuit…
    • Resolved

  • SN74LVCH8T245: Looking for a shift register to interface transistors to an I2C port extender (TCAL6416)

    TI Thinks Resolved
    Part Number: SN74LVCH8T245 Other Parts Discussed in Thread: TCAL6416 , , LM339B , LM339LV Tool/software: Hi I'm working on a project where I need to sense mains power using a Darlington optocoupler. The output will be read by an I2C port extender (TCAL6416…

  • TCAL6416: Software to control TCAL6416

    TI Thinks Resolved
    Part Number: TCAL6416 Other Parts Discussed in Thread: USB2ANY I have a TCAL6416 on a board that I am just bringing up and need to control the part via the USB2ANY (I2C) adapter. What software program would I use to control that part? Regards, Doug …
    • Answered

  • TCA6416A: TCAL6416 Interrupt clear vs. risk to miss an interrupt

    Resolved
    Part Number: TCA6416A Other Parts Discussed in Thread: TCAL6416 , TCA8418E , TCA6416 Hi, We want to use the TCA(L)6416A as an IO Expander of which a many IO's are used as input. The interrupt output is used to avoid polling, but we can't accept the…
    • Resolved
    • Answered

  • TCAL6416: SDA and SCL Input state with no power

    Resolved
    Part Number: TCAL6416 Hi:) When the TCAL6416 has no power on either the VCCI / VCCP, is it still possible to have a functioning I2C bus connected? I2C bus operates at 3.3V. Thanks!
    • Resolved
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