TCA4311 not propagating ACK

vince

Other Parts Discussed in Thread: TCA4311, TCA4311A

Hi, I am experiencing an issue with the TCA4311 IC. The problem is that it does not propagate the ACK from the input to the output. I have attached a trace illustrating the issue. The green trace is the SDAIN, the pink one being the SDAOUT.

Could anyone give me a hint on why this could be happening?

Thanks,

Vicent

over 12 years ago

0 Chris Kraft over 12 years ago

TI__Intellectual 2020 points

Hi Vicent,

This is a known issue with the TCA4311 and it is why the TCA4311 is listed as NRND on the TI website.

The TCA4311A has corrected this issue.

Regards,
Chris Kraft

0 vince over 12 years ago in reply to Chris Kraft

Prodigy 60 points

Hi Chris,

Thanks for your reply.

Could you please give me some information on the packaging marking for the TCA4311A? I did not find it on the datasheet!

Regards,

Vicent

0 Chris Kraft over 12 years ago in reply to vince

TI__Intellectual 2020 points

Vicent,

I am unsure why that was left off the data sheet but the topside marking for TCA4311AD & TCA4311ADR is PR311A

Regards,
Chris Kraft

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TCA4311 not propagating ACK