Hello,
what is the maximum dc drive current of the single ended LVTTL output? I am using an 100Ohm/100Ohm thevenin termination, so I need to know if it is possible to drive it.
Thank you
Hi Lyto,
There is not direct absolute maximum specified.
However - we do test VOH and VOL values at sourcing/sinking 8mA maximum and if possible I'd try to keep current at +/-8mA at these pins for a recommended usage case. At 8mA the VOH is 2.4V and VOL is 0.4V (min and max respectively)
We also do give the output voltage versus output current of a typical receiver:
To keep LVTTL levels a typical device can maybe source/sink 30mA at room temperature conditions - but this won't account for temperature variations and this is a graph of 1 unit that was tested - so it isn't something that can be read as a guarantee - but a general idea of how the device will function.
So ideally keep it to +/-8mA - but if you push it you could see communication failures as shown in our VI curves of the LVTTL outputs.
Please let me know if you have any other questions!
Best,
Parker Dodson
