5 Nov
2011
5 Nov
'11
8:12 p.m.
On 5 Nov 2011 at 19:24, Eric Smith wrote:
Chuck Guzis wrote:
If it's a 3.3v microcontroller on the other side, it's a good reason
for selecting one with 5V tolerant inputs, I guess. At least you can
use plain old HCT in both directions.
--Chuck
Do there exist any split supply (3.3V/5V) level
converter chips in
DIP?
I don't think so. That's why I use 74LVC parts for the 5V to 3.3V
direction, and 74HCT for the 3.3V to 5V direction, if 5V CMOS levels
are actually needed. Usually they aren't.