Article ID: 000084686 Content Type: Troubleshooting Last Reviewed: 09/11/2012

Are the Peripheral Component Interconnect (PCI) clamping diodes present before and during power-up in MAX II devices?

Environment

  • PCI
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    No, before and during power-up, MAX® II devices will not have PCI clamping diodes enabled. Therefore, if you want to use 5.0V emulation with PCI clamp and external resistor - you need to be sure the MAX II device is fully powered before driving it with 5.0V unless you plan to use external diodes.

    For more information on interfacing to 5.0V technology, refer to Using MAX II Devices in Multi-Voltage Systems (PDF).

    Related Products

    This article applies to 1 products

    MAX® II CPLDs

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