Article ID: 000074843 Content Type: Troubleshooting Last Reviewed: 03/22/2022

Are the internal clamping diodes on Intel® MAX® 10 or Intel® Cyclone® 10 LP devices active at all times?

Environment

  • Intel® Quartus® Prime Pro Edition
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    The internal clamping diodes in the Intel® MAX® 10 and Intel® Cyclone® 10 LP devices are composed of circuits that are enabled only in a fully configured device. So unless the device is completely powered up and configured, the internal clamping diodes do not exist.

    If while these devices are unconfigured, you are driving signals that require clamping diodes into them, in order to limit overshoot or undershoot use external clamping diodes to avoid damaging the device.

    Refer to the following user guide and handbook:

    Resolution

    A note is planned to be added to future releases of both aformentioned documents.

    Related Products

    This article applies to 2 products

    Intel® MAX® 10 FPGAs
    Intel® Cyclone® 10 LP FPGA