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Altera_Forum's avatar
Altera_Forum
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14 years ago

High-Z in the Cyclone family

Hello,

In my design of Cyclone IV, when I define an output in High-Z state and at the same time I pull this output to VCC/GND with a small resistor of ,say, 100ohm.

Will this action somehow damage the output stage of the Cyclone?

How high is the High-Z state in the Cyclone family?

Thank you,

Boris.

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    will not be damaged, even if you connect the high-z pin directly to power(io) or ground.

    high-z is often used as an input state for a bidir pins.