Glossary Definition for high impedance

Glossary Term: high impedance 


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:

  • High-Z
  • Hi-Z

Find a term alphabetically: