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

ID 683777
Date 2/15/2023
Public
Document Table of Contents

5.9.4. Guideline: Simultaneous Usage of Multiple I/O Standards

Each Intel® Cyclone® 10 LP I/O bank has its own VCCIO pins and supports only one VCCIO of 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, or 3.3 V. An I/O bank can simultaneously support several I/O standards if the I/O standards use the same VCCIO levels for input and output pins.

An I/O bank can simultaneously support several voltage-referenced standards if all the I/O standards use the same VREF and VCCIO values. For example, For examples:

  • SSTL-2 and SSTL-18 I/O standards require different VREF values. If you implement both of these I/O standards in the device, you must assign them to I/O pins in different I/O banks.
  • If you implement SSTL-2 and 2.5 V LVCMOS I/O standards, both with VCCIO of 2.5 V and VREF of 1.25 V, you can assign them to I/O pins in the same I/O bank.