12 Mar
2010
12 Mar
'10
5:48 a.m.
On Mar 11, 2010, at 8:48 AM, Steve Maddison wrote:
That would work as it's spec'd to drive 5v with 5v tolerant inputs using a 3.3v
supply. It (and some related parts) support power sequencing if you tie the enable
(through a pullup to 3.3v) it'll be disabled while the 3.3v (and possibly others) is
coming up.
TTFN - Guy
Guy Sotomayor wrote:
Yea, just checked this morning and they have only a few thru-hole parts and SOICs are on
28 week backorder (which means that no one has any and TI has to schedule fab time to make
more).
I've looked at those for a while, but
haven't found anyone who actually
stocks them. A number of places have them in their catalogs but have a 28
week lead time. Where did you find them?
I got mine from Mouser just a week or two ago. Ideally the part that I want is similar to the
26s10 but it's non-bus
side signals are tri-state and LVTTL compliant. That would save me a fair
number of parts.
Planning to drive and receive from a single pin, per chance? If
they'll take LVTTL on the driver input (which I'm hoping they will)
you could probably get away with one 5V-tolerant tri-state buffer on
the receiver output if the enables are used wisely. I was planning to
try such a set-up with a 74LVC244.