On 11/29/13 9:09 AM, Matt Wetherill wrote:
Thanks all for the replies,
Research on the web highlighted a couple of people who say they had
trouble driving 74HC595 chips from the 3.3v logic outputs on the Pi
however this may well be inaccurate - I am get hold of a few and give
them a try. They are easily available from Farnell here in the UK.
Thanks for the Digikey pointer - if it turns out that I do need
74HCT's then that's a good option although shipping to the UK is a bit
of a killer.
Matt
Matt,
You won't have a problem if you drive the 74HC595 from 3.3V also.
It works down to 2V!
--
David Forbes, Tucson AZ
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