25 Oct
2012
25 Oct
'12
5 a.m.
On Oct 25, 2012, at 1:26, Guy Sotomayor <ggs at shiresoft.com> wrote:
I've been thinking about this too. My thought was to use a 74abt125 as the driver.
Since it's a tri-state output, I'd ground the input and use the OE enable as the
data (which would
invert it). IOL is 64ma. Rise/fall times are 10ns/V but that could be slowed with a
series
resistor.
That's actually a little slow; that would correspond to a rise/
fall time of about 35 ns. Also, I couldn't find a datasheet that
specified an output min rise/fall time, but that sounds like
the numbers I was seeing for input.
Otherwise, that seems like a pretty decent part! MUCH
cheaper than the AS760/641, too. I'll throw one on the
test board.
- Dave