Article ID: 000074744 Content Type: Troubleshooting Last Reviewed: 09/01/2017

Can I connect VCCIO of I/O bank 1 to 2.5V for AS configuration with EPCQ or EPCQA device when using Cyclone III, Cyclone IV or Cyclone 10 LP device?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

No, when you use EPCQ or EPCQA quad-serial configuration device for AS configuration, you can't connect VCCIO of I/O bank 1 to 2.5V in Cyclone® III, Cyclone IV or Cyclone 10 LP device.
This is because the minimum VOH of the FPGA device is insufficient for driving EPCQ or EPCQA input pins.

Resolution

Use 3.0V or 3.3V for Bank 1 VCCIO in Cyclone III, Cyclone IV and Cyclone 10 LP devices when AS configuration with EPCQ or EPCQA devices is used.

Related Products

This article applies to 6 products

Intel® Cyclone® 10 LP FPGA
Cyclone® IV E FPGA
Cyclone® IV GX FPGA
Intel® FPGA Configuration Devices
Cyclone® III LS FPGA
Cyclone® III FPGAs

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