> There is a tradeoff between speed and current consumption with the resist=
or
> divider, but that is no different than the tradeoff of what family gate to
> use for the other direction. My standard answer is 2K ohms in series
> followed by 3.9K ohms to ground for 5.0V to 3.3V, but some cases may requ=
ire
> lower values. 2Kohms // 3.9Kohms =3D 1.3Kohms, * 100pF =3D 130nS, so that
> should be good for up to 2MHz square wave considering 100pF is very high =
for
> on-board traces.
> =

> Do you have any fact-based objection or is your comment just silly
> superstition?


Where did you get 100pF in your calculations?  Is this just a conservative =
value you chose for a rough estimate?

 =


FJ
 		 	   		  =

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