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Altera_Forum's avatar
Altera_Forum
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17 years ago

newbie question - gpio

Hello everyone, I have an altera DE2 Board and have a question regarding the gpio. As I only used the onboard input debvices(switches/buttons) up to now I'm not sure how to connect something to ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Well, there are many kinds of "transceivers".

In this case, it's a device that can act as bridge 3.3V LVCMOS/LVTTL and what you need.

*IF* what you need is 5V CMOS/TTL levels, you need a level tranlating buffer. Something from the 74LVC or 74AVC families.

Ie, 74AVCH1T45 but there are tons of options.