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Altera_Forum
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13 years ago

DE1 maximum voltage and current on GPIO ports....

First of all, sorry for my bad english, but it´s not my mother language... (i speak spanish). The thing is, in the University (FRBA UTN, Electronic Engeniering) we are trying to start a few new...
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Altera_Forum
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13 years ago

GPIO pins are finally connected to pins on the Cyclone II fpga on DE1 (via resistors). The final voltage & current driving stats can be found in the DC characteristics section in Cyclone II handbook [http://www.altera.com/literature/hb/cyc2/cyc2_cii5v1.pdf].

In DE1, I believe the cyclone II GPIO data pins work @3.3V (when configured as LVTTL) with 40mA max sourcing current & 25mA max sinking current. But please don't take my word for it; do check with the handbook first.