SN74AVC32T245ZKER channel/channel propagation delay

Moving to translation forum for support.

Hi,

If data is tranlated from 3.3V to 2.5V, SN74AVC32T245 cannot support 250Mbps data rate. If data is tranlated from 2.5V to 3.3V, please run some simulation with IBIS model since propagation delay will depend on output loads. In out datasheet, tplh is measured under typical load circuits which show on page 13 in the datasheet.

Thanks

 

We only need 125 Mbps so this is fine.

However the actual question is: how much is the propagation delay / skew  between two channels in the same device with the same load? (eg channel to channel skew)

Hi,
Please refer Tplh and Tphl parameter. Since we did't test channel-to-channel time skew, Tplh_max - Tplh_min can be recognized as time skew of channel-to channel under 15pF output load.
Thanks

Hi,

Thank you for the reply. With our VCCa and VCCb this would result in 2.3ns.

We need < 0.5ns in our design. Can you recommended any TI part which complies with this < 0.5ns?

Guido

Hi Guido,

Becasue we didn't test channel-to-channel time skew in tranlstor portfolio. It is better to run some simulation with IBIS model to make sure our chip performance.

 

Thanks