At 11:56 AM 3/9/2006 +0000, you wrote:

>I would be happy to do that, but as with some Philips products I have 
>found, they appear to have a VERY loose idea of what LVTTL is.  That part 
>says LVTTL compliant at 3volts (which would be awkward anyway) but the 
>min/max thresholds at that voltage are 2.2v and 0.6 rather than 2.0v and 
>0.8v.  Probably close enough from my point of view, but customer is 
>insistant on meeting the actual LVTTL levels after problems with another 
>vendors part.

It's within the LVTTL spec, but with reduced noise margin (200mV rather
than 400mV)

The output spec is 400mV/2.4V.

But you'd have to operate it at 3.0V rather than 3.3V, as you note.

Maybe you're going to have to design your own ST with a comparator and
some 1% resistors if you really need to meet this spec. But then your
size constraint bites you on the butt..

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff


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