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  • RE: PCA9535: Difference with PCA9555

    Tyler Townsend
    Tyler Townsend
    Hi Woon, TCA9535 is p2p drop-in replacement upgrade to PCA9535. The TCA9535 is the same or better in all specs. It uses 7-bit i2c address too. Same software in terms of register map and fixed i2c address. Regards, Tyler
    • 3 months ago
    • Interface
    • Interface forum
  • PCA9535: Marking information

    Jeff YANG
    Jeff YANG
    TI Thinks Resolved
    Part Number: PCA9535 Hi, Is possible to provide PCA9535 marking information to me? thanks! Jeff
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9535: leakage current issue

    Jeff YANG
    Jeff YANG
    TI Thinks Resolved
    Part Number: PCA9535 Hi, We have FA return case CPR241100317 CQE ask me post on E2E to you discuss becasue below reason. Customer reported ~30% failure was observed All LTCs was shipped to WW customer and there’s no return history There’s no outlier…
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9535: PCA9535 keeps I2C line busy at HOT temperature

    Jessica Ballard
    Jessica Ballard
    Part Number: PCA9535 When bringing up the PCB that has 3 PCA9535's populated to appx 60C, I am noticing that the I2C line is being driven low before my MCU (master) attempts to communicate with the device. The MCU is located outside the temperature…
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9535: Application issues of chips

    Tonyx.wu
    Tonyx.wu
    Part Number: PCA9535 The gpio of pca9535A was pulled down, causing an i2c abnormality The P6 of the expansion chip was pulled down causing an i2c anomaly There has been no change in the same design. The customer feedback before that the old batch of…
    • over 1 year ago
    • Interface
    • Interface forum
  • Answered
  • PCA9535: If a 25% duty cycle square wave is applied to input pin before power-on, outputs don't change

    John Hentges
    John Hentges
    Resolved
    Part Number: PCA9535 Other Parts Discussed in Thread: TCA9535 Tool/software: We make an AM64xx DAQ board that uses the PCA9535. Our lead customer has discovered that, if a signal is applied to the input pins before VCC is powered up, the output pins…
    • Resolved
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9535: recommend junction temperature

    summer xu
    summer xu
    TI Thinks Resolved
    Part Number: PCA9535 Hi, I want to ask is there any recommend junction temperature information of PCA9535? In datasheet only recommend Operating free-air temperature. Is it feasible if the temperature of the device is 110~120℃? Will it be damaged? Thank…
    • over 1 year ago
    • Interface
    • Interface forum
  • Answered
  • PCA9535: Remote 16-BIT I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

    Finbarr Long
    Finbarr Long
    Resolved
    Part Number: PCA9535 Other Parts Discussed in Thread: TCA9535 HI In order to hardware reset the PCA9535 registers to default state we are looking to cycle its VCC supply voltage pin resulting in a POR. Given that all I/O pins will default to high impedance…
    • Resolved
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9535: PCA9535DBR alternative

    Conor
    Conor
    TI Thinks Resolved
    Part Number: PCA9535 Other Parts Discussed in Thread: TCA9535 Hi, PCA9535DBR is EOL, so we are investigating alternatives. What products do you recommend? Thanks,
    • over 2 years ago
    • Interface
    • Interface forum
  • PCA9535: Use with IO Expander EVM

    Michael Balourdas
    Michael Balourdas
    TI Thinks Resolved
    Part Number: PCA9535 Other Parts Discussed in Thread: IO-EXPANDER-EVM , TCA9535 Hello, Can the IO Expander EVM be used to evaluate PCA9535PWR? Thanks, Michael
    • over 2 years ago
    • Interface
    • Interface forum
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