Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 10/25/2023
Document Table of Contents Open-Drain Output

The optional open-drain output for each I/O pin is equivalent to an open collector output. If it is configured as an open drain, the logic value of the output is either high-Z or logic low.

Use an external resistor to pull the signal to a logic high.

Note: Do not pull the output voltage higher than the Vi (DC) level. Intel recommends that you perform HSPICE simulation to verify the output voltage in your selected topology. You must ensure the output voltage meets the VIH and VIL requirements of the receiving device.