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Showing 98 results View by: Thread Post Sort by
    Answered
  • PCA9546A: PCA9546A not passing through the I2C commands to the devices after the switch

    Jason Song
    Jason Song
    Resolved
    Part Number: PCA9546A Hi TIer, I changed the schematic based on the inputs I got from the E2E and here is the schematic. At CH0, I have four I2C MUX connected, and here is one of them. I am using a PMBUS to run the communication. I can write…
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • PCA9546A: Request parts number that can use instead of PCA9546A

    Kenta Yajima
    Kenta Yajima
    Part Number: PCA9546A Hi team Customer need socket that can use instead of PCA9546A and its hight is less than 1mm. Could you tell me parts number that meet customer's demand. Best regards, Yajima
    • over 4 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9546A: PCA9546A #RESET pin

    Peter Evans
    Peter Evans
    Resolved
    Part Number: PCA9546A Hi, I would like the connect the #RESET pin on the PCA9546A to an active-high enable line which is routed to the enable pins of a number of I2C slave devices downstream of the PCA9546A. This would mean that the #RESET pin would…
    • Resolved
    • over 4 years ago
    • Interface
    • Interface forum
  • PCA9546A: Thermal Resistance

    Renan Santos Adriano
    Renan Santos Adriano
    Part Number: PCA9546A Hello Team, Can you share with us the thermal resistance of PCA9546ARGVR? It seems that the datasheet only contains the R θJA Junction-to-ambient thermal resistance. Regards, Renan
    • over 3 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9546A: Device Reset

    Phil Salisbury
    Phil Salisbury
    Resolved
    Part Number: PCA9546A A few questions about reset: The data sheet 8.4.1 states "The /RESET input must be connected to VCC through a pull-up resistor". I have a design where the /RESET line is driven from a TTL output from an MCU. The MCU and PCA9546A…
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • PCA9546A: Signal Type

    Ray Vincent Aranzaso
    Ray Vincent Aranzaso
    TI Thinks Resolved
    Part Number: PCA9546A Hi, Good Day. What signal type (SCL, SDA, SC*, SD*) for these pins? Input, Output, Input/Output? I know that these pins are Input/Output signal type but the customer confuse on page 1, 13, 21 diagram on he datasheet when the arrow…
    • over 3 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9546A: SDA is stuck at low

    Shengnan Li
    Shengnan Li
    Resolved
    Part Number: PCA9546A We are testing OSEPP I²C Expansion Shield, the board is powered by connect Pin3 of JP5 to 5V and pin4 of JP5 to GND. without connect to another devices, the pin15 of PCA9546 'SEN_SDA' is held low. Can you enlighten me what could…
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9546A: Address sequence for slaves

    Larry Shaffer
    Larry Shaffer
    Resolved
    Part Number: PCA9546A Hello, We do not understand exactly how I2C slaves are addressed on the other side of the PCA9546A switch. We understand that you first address the control register on the I2C switch and then enable one or more slave channels.…
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9546A: I2C mux application consulting

    Sam Tsai
    Sam Tsai
    Resolved
    Part Number: PCA9546A Dear Sirs: There is one question about I2C mux application, would like to clarify that, on our product, applied for 2 cases situation, as below show situation1 & situation2. For situation1, discovered symptom when try enable…
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • PCA9546A: PCA9548A

    jason li
    jason li
    Part Number: PCA9546A Other Parts Discussed in Thread: PCA9548A i would like to learn the following info from I2C communication feature: 1) what is the most frequent failure mode incurred in I2C communication ? 2) what is the stress test to access…
    • over 3 years ago
    • Interface
    • Interface forum
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