> If the 5V logic is TTL, then it will be. If its some
> ancient CMOS family (HC I think), then it might not
> be TTL compatible, and in that case you will want to
> use an open-collector (or tri-state) and a pull-up
> to 5V. For the tri-state, your 3.3V logic level goes
>
Thanks! (x2!) I'm not currently dealing with ancient CMOS, but should that
happen, what would be a reasonable value for the resistor?
And in the ESD sort-of-friendly circuit you described, you put 100 ohm in
series on both input an output? I'm studying your schematic, and see a 10K
pull up resistor, but not resistors in series on the NC7SZ125s.
It's the little things ;)
Again, thanks super,
Craig
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