Glossary Definition for High-Z

Glossary Term: High-Z 

Definition

Hi-Z (or High-Z or high impedance) refers to an output signal state in which the signal is not being driven. The signal is left open, so that another output pin (e.g. elsewhere on a bus) can drive the signal or the signal level can be determined by a passive device (typically, a pull-up resistor).

See Also:

Synonyms
  • Hi-Z
  • high impedance

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