Cyclone® V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683375
Date 10/18/2023
Document Table of Contents

5.10.2. Differential I/O Termination

The I/O pins are organized in pairs to support differential I/O standards. Each I/O pin pair can support differential input and output buffers.

The supported I/O standards such as Differential SSTL-15, Differential SSTL-125, and Differential SSTL-135 typically do not require external board termination.

Intel recommends that you use OCT with these I/O standards to save board space and cost. OCT reduces the number of external termination resistors used.