AVR-Chat

On 1/22/07, Jim Wagner <jim_d_wagner@applelinks.net> wrote:
>
> This has no real advantage that I can see for level
> shifting.


It's another option, but as to what advantage, I don't know.


> Rather than this, just use a transistor/fet and a
> pullup resistor.


Well, that normally inverts the sense of the signal, which may or may not be
a problem.


With one of these, you still need a pullup
> and you have used two transistors. It is still inverting
> like a single transistor would be, which makes neither of
> these very useful for simple in-line level shifting.


The Szaiklai is not inverting.  Each transistor inverts, so the end product
is the original polarity.


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