• Locked Locked
  • Replies 3 replies
  • Subscribers 33 subscribers
  • Views 111 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TCA9539-Q1: with 3 address bits

TEMC
Intellectual 600 points
Part Number: TCA9539-Q1
Other Parts Discussed in Thread: TCA9535, TS5A23157-Q1, TCA9548A-Q1, TCA6408A-Q1, TCAL9539-Q1,

Hi,

     please suggest part with the same specifications & standards with having of 3 address bits

thanks in advance  

  • Guru 213270 points

    The TCA9535 replaces the reset input with a third address pin. But it does not have automotive qualification.

    You could separate bus segments with an I²C switch like the TCA9548A-Q1 (8 channels) or a general-purpose switch like the TS5A23157-Q1 (requires a separate GPIO control signal).

  • in reply to Clemens Ladisch
    Intellectual 600 points

    Need to comply these 2

    •

    AEC-Q100 (Grade 1): Qualified for automotive applications • Functional Safety-Capable

  • in reply to TEMC
    TI__Genius 17368 points

    TEMC,

    Our only automotive grade 1 functional safety capable IO expanders are the TCAL9539-Q1, TCA6408A-Q1, and TCA9539-Q1. All of these devices have <3 address pins with the 6408A only having one address pin. 

    Clemens suggested a possible solution. There could be a separate bus segment with an I2C switch (TCA9548-Q1) or general purpose switch (TS5A23157-Q1) to help with lack of address pins. Of course the addition of these devices will require separate GPIO control signals. 

    Regards,

    Tyler