Re: serial link high level protocol thoughts?

From: David Wood (
Date: 2008-11-11 01:06:53

On Sun, 9 Nov 2008, john/lori wrote:

> Have you tryed HCT? I'd think that they're TOO fast for
> eg the IEC bus and the Xx1541 series cables.
> Certainly, most times I've seen them used that way, pains
> were taken to slow them down.
> I have sometimes wondered how well some HCT tri state buffers
> wired as open collector would work (ie tie the input one way
> and then use the tristate control for the signal) and power
> them from one of the signal lines (they wouldn't be sourcing
> any current to speak of)

The only issue with that is you won't gain control over the individual
lines, which you'd need for IEC.


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