Table Of Contents

Pin View Pane PPMU Section

Last Modified: November 23, 2020

Use this section of the Pin View pane to specify pin parametric measurement unit (PPMU) options. A green icon Green Icon next to the PPMU section indicates that the PPMU is forcing a voltage or a current.

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Note  

The collapsed PPMU section displays the PPMU voltage indicator in the section heading. When you expand the section, the voltage indicator displays below the circuit diagram. The PPMU is always measuring voltage when the pane is visible.

  • Voltage and Current Indicator — Displays the actual voltage and current. The PPMU always measures the voltage on the pin but measures the current only when forcing a voltage or a current.
  • I Limit Range/I Level Range/I Range — Specifies the current range to use. Use the pull-down menu to select a valid range. Displays as I Limit Range when you force a voltage, I Level Range when you force a current, and I Range when idle.
  • VF Enable Button — Enables PPMU Force Voltage and disables any other active enable button. Disabling PPMU Force Voltage puts the pin into a high-impedance state until you enable the pin driver, enable PPMU Force Voltage, or enable PPMU Force Current.
  • VFSpecifies the voltage level that the PPMU forces to the DUT pin. Takes effect when the PPMU is in Force Voltage mode.
  • IF Enable Button — Enables PPMU Force Current and disables any other active enable button. Disabling PPMU Force Current puts the pin into a high-impedance state until you enable the pin driver, enable PPMU Force Voltage, or enable PPMU Force Current.
  • IFSpecifies the current level that the PPMU forces to the DUT. Takes effect when the PPMU is in Force Current mode.
  • VCHSpecifies the nominal voltage at the pin at which the high side voltage clamp activates when the PPMU forces current to the DUT. Voltage clamp high is enabled only when the PPMU is in Force Current mode.
  • VCLSpecifies the nominal voltage at the pin at which the low side voltage clamp activates when the PPMU forces current to the DUT. Voltage clamp low is enabled only when the PPMU is in Force Current mode.

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