AVR-Chat

Hi Again ! I ended up using the resistor method in my design - main
problem was not the cost of adding 14 resistors, but rather that id
already designed the PCB and it was a pain in the A to add 14
resistors to the tightly packed Nordic RF circuit. Managed to fit them
in using 0603 resistors. By the way, 1k5 and 1k give 5V to 3V. 

I believe it will work fine, as the fastest data rate is only in the
100s of kHz 

I was only hoping someone would say something like : "Oh on, don't use
resistors, the simplest way that takes zero space is . . . " didn't
get the answer I was hoping for unfortunately. 

Reminds me of my uni electronics lecturer's favorite quote: "Theres no
free lunch in electronics"

Thanks for all the response to everyone

Cheers
Hein B
Auckland, New Zealand.

--- In AVR-Chat@yahoogroups.com, John Samperi <samperi@...> wrote:
>
> At 07:55 PM 22/01/2007, you wrote:
> >http://en.wikipedia.org/wiki/Sziklai_pair
> 
> It would be nice to how many pins (out of 12??) are inputs
> and how many are outputs to the processor (I could look it up ;) ??).
> Not all of them will be data or clock pins I suppose.
> 
> For the data and clock pins level shifters like those used for
> I2C could be used (PCA9515 or similar)
> 
> Regards
> 
> John Samperi
> 
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