Other Parts Discussed in Thread: SN74AVC4T774
I have a pretty detailed/low-level question regarding the SN74AXC4T774, a high speed level translator.
In the switching characteristics, a MIN and MAX is specified for Enable/Disable Timings.
You will notice a very significant increase in “MAX” timing condition from “MIN” (29nS vs 0.5nS.)
I am wondering what is driving this significant increase…
Is it extremely loose due to thermal takeoff at some point?
We may be able to limit temperature variation in our application.
If it is driven by electrical/process/manufacturing variability, then that tells me there is nothing we can do in our design to minimize that #.
For our application, I think ~10nS is probably okay, but 25+ is starting to push things.
(I am also aware of TI’s other offerings and how things change with increasing VCCA voltage. This part appears the most optimal for our application, and VCCA=1.5V is a requirement as well).
See the screeshot below:
