Re: 3.3V interfacing to the CBM

From: Raymond C. Bryan (
Date: 2002-12-10 05:26:51

>Seems most new LSI technology is going to 3.3V designs (eg CPLDs etc). Most
>are input tolerant for 5V, but how does one interface their outputs? Does a
>simple pull-up resistor to 5V do the trick?
Why do you need to?  Doesn't the 6502 see >=2.6V as a 1 and <=2.4V as 0?

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