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  • RE: PCA9543A: What is hot insertion?

    The A0/A1 voltages can be changed, but if they change in the middle of an I²C transaction, it is undefined which address is actually used. You can do hot insertion on the A0/A1 pins only if you ensure that the PCA9543A itself is not being accessed at…

  • PCA9543A: ibis model

    TI Thinks Resolved
    Part Number: PCA9543A Other Parts Discussed in Thread: TCA39306 Hello expert, Per checked with other thread, we don't have IBIS model for two years ago. Just want to double check if we have now? Thanks! Best regards, Ann Lien

  • PCA9543A: 2 host 1 slave application

    Answer Suggested
    Part Number: PCA9543A Other Parts Discussed in Thread: TS5A23157 Hi, We have 2 Master 1 slave application as below. Does PCA9543 can support this application? Or there have other suitable device? Thanks! Jeff

  • PCA9543A: Enquiry on data and clock signal

    TI Thinks Resolved
    Part Number: PCA9543A Hi Team, May I check with you for I2C switch, are we supposed to see the data and clock on both the I2C channel 0 and I2C channel 1 or only on the channel we are accessing? Thanks.

  • PCA9543A: address conflict problem

    Answer Suggested
    Part Number: PCA9543A Hi, My customer has a address conflicting question related to PCA9543A need to double check with you. They have PCA9543A and a device that address is 0xA0 under same bus channel. And they use another device address is also 0xA0 under…
    • Answered

  • PCA9543A: Is PCA9543A plan to EOL?

    Resolved
    Part Number: PCA9543A Other Parts Discussed in Thread: TCA9543A Hi team, Customer see PCA9543APW shows last buy, and PCA9543APWR doesn't show, so they check with us, does PCA9543APWR has plan to EOL? Could you help comments? Best Regards, Will
    • Resolved
    • Answered

  • PCA9543A: Part Marking Meaning

    Resolved
    Part Number: PCA9543A Other Parts Discussed in Thread: PCA9536 , TCA9543A Good Day, I'm using TI part PCA9543A in my design. My as-designed power-on ramp is 35ms. From the errata in the data sheet PO rise time must not exceed 10ms. I see that PCA9543A…
    • Resolved
    • Answered

  • PCA9543A: different between PCA9543A & TCA9543APWR

    Resolved
    Part Number: PCA9543A hello Expert, What is the main difference between PCA9543A & TCA9543APWR? What is the purpose to have them with slight discrepancies? (Their specs look similar, expect the ESD protection range & operating voltage range) …
    • Resolved

  • PCA9543A: Host I2C to SMBus (2-channel) and Isolation

    TI Thinks Resolved
    Part Number: PCA9543A Other Parts Discussed in Thread: ISO1540 , ISO1640 Hello E2E Experts, Good day. I have a design that will use two smart battery packs (SMBus) I have looked at the PCA9543AD to communicate with them from the I2C host. Do I also need…
    • Answered

  • PCA9543A: PCA9543A

    Resolved
    Part Number: PCA9543A I am using the PCA9543ADR as an I2C switch connected to an STM32F401RE. I am able to write to the control register and read back from it but I can't write to the slaves connected to the PCA9543ADR. From debugging, I've found that…
    • Resolved

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