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Showing 62 results View by: Thread Post Sort by

  • PCA9534: PCA9534

    TI Thinks Resolved
    Part Number: PCA9534 Tool/software: For the part PCA9534- Bus Controller, Could you please confirm the die attach/die glue material is silver or any other material?

  • PCA9534: Junction Temperature

    TI Thinks Resolved
    Part Number: PCA9534 Other Parts Discussed in Thread: TCA9534 Tool/software: I need to know the Tj (Junction Temperature) and θJC (Thermal Resistance, Junction-to-Case) parameters for PCA9534PWR . However, these values are not listed in the datasheet…

  • PCA9534: Bus Controller

    TI Thinks Resolved
    Part Number: PCA9534 Tool/software: Hello, The values provided for RJA in the mail and in the datasheet are completely different. Which one to consider ?Kindly provide the exact value.

  • RE: PCA9534: Bus Controller

    Hi Akash, Here are the thermal values for PCA9534RGV: Theta JA-High K (standard datasheet value) 62.8 Theta JC, top (standard datasheet value) 60.1 Theta JB (standard datasheet value) 38.2 Psi JT (standard datasheet value) 6.1 Psi JB (standard…
    • Answered

  • PCA9534: P04 causes failure when used as input to read a high value

    Resolved
    Part Number: PCA9534 Tool/software: We have 2 different products using the PCA9534 to act as a GPIO expander. The first product is using Linux 6.6.23-gf296dd2c-g84641290ab13 The second product is using Linux 5.10.48-bsp-yocto-ampliphy-i.mx6-pd21.1.1 …
    • Resolved

  • PCA9534: GPIO4 to GPIO8 cannot be controlled

    Part Number: PCA9534 Dear TI Teams, We found that only GPIOI to GPIO3 can be controlled during debugging PCA9534RGVR，while the GPIO4 to GPIO cannot be controlled. After analysis, it was found that only the low three bits can be changed when reading and…

  • PCA9534: Silicon and Documentation Issue

    Part Number: PCA9534 Hello Ti, Hopefully this is a suitable place for this report. We have discovered what we believe to be a silicon issue with at least more recently Fabricated PCA9534 parts. The polarity inversion register (register 2) should be initialized…
    • Answered

  • PCA9534: Clock Stretching

    Resolved
    Part Number: PCA9534 Hi Experts, We need your assistance. The I2C specification allows for a slave device to stretch the clock if it is still busy processing a request. Does the PCA9534 (GPIO Expander) ever perform clock stretching? Thank you in advance…
    • Resolved

  • PCA9534: Termination of Unused IO

    TI Thinks Resolved
    Part Number: PCA9534 Hello, I'm looking for the best method for terminating unused IO on the PCA9534. For the lowest power dissipation, should they be pulled high or low? Should it be pull high or low through a resistor, or can I tie directly to a…
    • Answered

  • PCA9534: Multi-master mode

    Resolved
    Part Number: PCA9534 Hi Experts, We need your assistance. Can the PCA9534 be used on a bus that operates in multi-master mode? See the description below: https://www.i2c-bus.org/multimaster/ Thank you in advance for your support. Best regards, Jonat…
    • Resolved
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