The TI E2E™ design support forums will undergo maintenance from July 11 to July 13. If you need design support during this time, open a new support request with our customer support center.



Search tips
Showing 97 results View by: Thread Post Sort by

  • RE: PCA9535: Difference with PCA9555

    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

  • PCA9535: Marking information

    TI Thinks Resolved
    Part Number: PCA9535 Hi, Is possible to provide PCA9535 marking information to me? thanks! Jeff

  • PCA9535: leakage current issue

    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…

  • PCA9535: PCA9535 keeps I2C line busy at HOT temperature

    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…

  • PCA9535: Application issues of chips

    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…
    • Answered

  • PCA9535: If a 25% duty cycle square wave is applied to input pin before power-on, outputs don't change

    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

  • PCA9535: recommend junction temperature

    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…
    • Answered

  • PCA9535: Remote 16-BIT I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

    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

  • PCA9535: PCA9535DBR alternative

    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,

  • PCA9535: Use with IO Expander EVM

    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

Didn't find what you are looking for? Post a new question.