• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 33 subscribers
  • Views 276 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TCA9617A: Cross Reference Code

Kazuki Itoh
Genius 10770 points
Part Number: TCA9617A
Other Parts Discussed in Thread: TCA9617B

Hi team,

I searched NXP PCA9617A by TI cross reference search, and found cross reference code is P.

Why do we define cross reference code as P while they are is P2P I2C device?

What is the key barrier to replace PCA9617A?

Regards,

Itoh

  • 0
    TI__Guru 73061 points

    Hey Itoh-san,

    One of the differences is the TCA9617A is not powered off high impedance. If A side is larger than B side then the device will leak current into B side and back bias the device. B version fixes this and is what we recommend customers use instead of A version.

    The other difference I know of is the Vcc rules for NXP's version and our version are a little bit different, where the NXP version does allow A side to be higher than B side and still meet electric specs. (This is true for the TCA9617B vs. NXP).

    -Bobby

  • 0 in reply to BOBBY
    TI__Genius 10770 points

    Thank you so much Bobby!

    Will contact you for additional request offline :)

    Regards,

    Itoh