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Showing 74 results View by: Thread Post Sort by
  • PCA9554: Question about PCA9554

    Jimmy Huang
    Jimmy Huang
    TI Thinks Resolved
    Part Number: PCA9554 Other Parts Discussed in Thread: TCA9555 , TCA9536 , TCAL6416 , TCAL9539 Tool/software: Hello: New project - handheld terminal needs, need an expansion chip: need to expand 10 GPIO, 1.8V, the package should be as small as possible…
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9554: PCA9554PWR

    Carlos Lizandro
    Carlos Lizandro
    TI Thinks Resolved
    Part Number: PCA9554 Other Parts Discussed in Thread: TCA9554 , , TCA9554A Tool/software: Hello everyone. Not sure if this is the correct place to ask this question but I would like to know if I can add external pulls, 10k Ohms to the P[n] ports of the…
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9554: PCA9554PWR

    David Fournier
    David Fournier
    TI Thinks Resolved
    Part Number: PCA9554 Other Parts Discussed in Thread: TCA9554 I need the “lifecycle” on the PCA9554PWR (16bit I/O Expander)..if Marketing can help comment..even better. We have a few programs, and want to make sure this device will be around, and not…
    • over 2 years ago
    • Interface
    • Interface forum
  • PCA9554: Losing output data / config

    Brian Merkel
    Brian Merkel
    TI Thinks Resolved
    Part Number: PCA9554 Other Parts Discussed in Thread: TCA9554 Hello, I am using the PCA9554 to drive output enable signals for load switches. All of the IO are configured as outputs at all times and during normal operation, some of the outputs that…
    • over 2 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9554A: Using PCA9554 instead of PCA9554A

    Danilo A.
    Danilo A.
    Resolved
    Part Number: PCA9554A Other Parts Discussed in Thread: PCA9554 , Hi Team, Our customer previously used the PCA 9554A in his application. He incorrectly installed PCA9554 and now the system do not work According to our customer, I used pca9554a in…
    • Resolved
    • over 2 years ago
    • Interface
    • Interface forum
  • PCA9554: PCA9554 sleep mode

    Bard Ciou
    Bard Ciou
    Answer Suggested
    Part Number: PCA9554 Dear All, this is my customer for notebook application Does PCA9554PWR support the sleep mode? if yes, how the power consumption (mW) during the sleep more and operation mode? Regards, bard
    • over 4 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9554: What is Tj Temperature specification?

    Paul Yeh
    Paul Yeh
    Resolved
    Part Number: PCA9554 Hi team, MY customer is asking junction temperature specification and I can't find it in datasheet. Please advise. Thanks
    • Resolved
    • over 2 years ago
    • Interface
    • Interface forum
  • PCA9554: QFN package

    Will Wang47
    Will Wang47
    Part Number: PCA9554 Other Parts Discussed in Thread: PCA9544A , Hi team, Could you help check if we get the QFN package part of PCA9554? I can't find it in the datasheet. Thanks and Best regards, Will
    • over 3 years ago
    • Interface
    • Interface forum
  • PCA9554A: What is the difference between PCA9554A and PCA9554?

    Ken Chen39
    Ken Chen39
    Answer Suggested
    Part Number: PCA9554A Other Parts Discussed in Thread: PCA9554 What is the difference between PCA9554A and PCA9554?
    • over 4 years ago
    • Interface
    • Interface forum
  • PCA9554: PCA9545 digital inputs damaged caused by too long high rise times?

    Alois Lang1
    Alois Lang1
    Part Number: PCA9554 Hello, I made some measurements of one input of the PCA9554. I measured at Pin 12 of the PCA9554 to GND. I couldn't find any spikes, over - or undershot of the input signal at the Chip input point (PIN 12 of PCA9554). Conntecting…
    • over 6 years ago
    • Interface
    • Interface forum
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