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Altera_Forum
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10 years ago

DE2_115 GPIO High and low voltage

Can anybody tell me how much is high and low voltage for GPIO pins when they are in 3.3 V state? DE2-115 Manual, Page 46 says: Each pin on the expansion headers is connected to two diodes and...
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Altera_Forum
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10 years ago

I don't know exactly but as input it sounds logical. switch it half way. You always have bands of low and high. So losses due to wire and connection resistanses don't change the behaviour drastically. Other factors such as humidity and temperature also change the characteristics.