topic Re: nvt4857uk datasheet in Other NXP Products

nvt4857uk datasheet

larice — Wed, 08 Apr 2020 12:36:29 GMT

Looking at the NVT4857UK datasheet I'm missing timing specifications for anything else except 1.2 -> 1.8.

I'd like to verify timing for a usage case with vcca=1.8 and vccb=3.3 as well as vccb=1.8

Further I'd expect the datasheet to talk a bit about requirements for the

"automatic direction control". There surely will be some requirements to make this work properly,

maximum length of signal reflections, transition times or something like this.

Best Regards,

Re: nvt4857uk datasheet

reyes — Thu, 09 Apr 2020 14:02:06 GMT

Hi,

I understand your concern and you are right about the missing information in the datasheet, however, I checked with the applications team and product engineers team of this device and we do not have more data than the one is in the datasheet already.

NVT4857UK is compliant to SD Physical Spec version 3.01, so, you can use that as reference for the timings of 1.8V and 3.3V.

Regards,

Jose

Re: nvt4857uk datasheet

larice — Thu, 09 Apr 2020 14:28:36 GMT

Thank You for the warm words, and for having checked.

I will have to live with the status quo.

Best Regards,

Robert