Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

VCCIO EPM7128SLC84-15 and 5 Volt outputs: HELP!

I'm using a MAX EPM7128SLC84-15 and need 5V logic outputs. So, the CPLD is wired with all VCC=5V and all the VCCIO = 5V too. Yet the outputs show 3.3V on the 'scope. I believed the Data Sheet page...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

@FvM: Thank you! Can you point to the document for this, please; I'm looking at the MAX7000 Programmable Logic Device Family data sheet Sept 2005, ver 6.7 page 20 where there is no mention of external pull-ups ...

Admittedly, I did wonder, and will try it. More later.