Answered

• TCA9539-Q1: Edge monitor issue of TCA9539-Q1 IO expansion chip

  

  Mian DENG

  Resolved

  Part Number: TCA9539-Q1 Hi experts, We are using TCA9539-Q1 for IO expansion on our custom board. The IO expansion chip is handled by linux kernel I2C driver. Currently, I am encountering an issue where changes in the input state of the IO can be detected…

  • Resolved

  • 1 month ago
  • Interface
  • Interface forum

• TCA9539-Q1: TCA9539-Q1

  

  snehal

  TI Thinks Resolved

  Part Number: TCA9539-Q1 Tool/software: Hello TI Team, TCA9539-Q1 with this IO expander, can i use output pins as analog I/O or I can use them as digital I/O only? Regards, Snehal

  • 7 months ago
  • Interface
  • Interface forum

• TDA4APE-Q1: Edge monitor issue of TCA9539-Q1 IO expansion chip

  

  Mian DENG

  Answer Suggested

  Part Number: TDA4APE-Q1 Other Parts Discussed in Thread: TCA9539-Q1 , TCA9539 Hi experts, We are developing a custom board based on TDA4APE, and we are using TCA9539-Q1 for IO expansion. The IO expansion chip is handled by linux kernel I2C driver. Currently…

  • 2 months ago
  • Processors
  • Processors forum

• TCA9539-Q1: TCA9539 I2C DATA is pulled low

  

  xiwen Yan

  Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 , Tool/software: Our MCU has two TCA9539s connected to one I2C bus. 500us after operating the one with address 0x74, the I2C DATA line is pulled low probabilistically. The I2C bus recovers…

  • 9 months ago
  • Interface
  • Interface forum
Answered

• TCA9539-Q1: Need functional safety information

  

  Todd Vanyo

  Resolved

  Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA6408A-Q1 , The device in question is in the Functional Safety-Capable category and I need to request the documentation available for this device. Thanks in advance. Todd

  • Resolved

  • 4 months ago
  • Interface
  • Interface forum

• TCA9539-Q1: TCA9539 output default output state

  

  Scarlett Cao

  TI Thinks Resolved

  Part Number: TCA9539-Q1 Tool/software: Hi team, Customer is using TCA9539-Q1 for output channel expansion. they want to know when TCA9539-Q1 1) nreset pin low and 2) first power up, what the default output state, pull high or low? Thanks Scarle…

  • over 1 year ago
  • Interface
  • Interface forum
Answered

• TCA9539-Q1: IBIS模型申请

  

  liang zhang

  Resolved

  Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Tool/software: 您好， 请帮忙发送一下IBIS模型。

  • Resolved

  • 6 months ago
  • Interface
  • Interface forum
Answered

• RE: TCA9539-Q1: TCA9539-Q1：Interrupt behavior

  

  Tyler Townsend

  Resolved

  Heater, Say the original state of your input is HIGH (logic 1). If that pin is changed to an output, the output will continue to operate without causing an interrupt on /INT. If you change that pin from an output to and input, and the input logic…

  • over 1 year ago
  • Interface
  • Interface forum
Answered

• TCA9539-Q1: About interrupt lost

  

  Leo Ma

  Resolved

  Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA8418E Tool/software: Hi Expert, Have a nice day! I have question about TCA9539-Q1 need your professional support: About “ Interrupts that occur during the ACK clock pulse can be…

  • Resolved

  • 8 months ago
  • Interface
  • Interface forum
Answered

• TCA9539-Q1: question about IC power supply

  

  Jay wang

  Resolved

  Part Number: TCA9539-Q1 Tool/software: hi expert i am using auto grade IC. i want to double check with you whether this auto grade IC is suitable for 5V system?

  • Resolved

  • 7 months ago
  • Interface
  • Interface forum

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