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

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

5.10.2.1. Differential HSTL, SSTL, and HSUL Termination

Differential HSTL, SSTL, and HSUL inputs use LVDS differential input buffers. However, RD support is only available if the I/O standard is LVDS.

Differential HSTL, SSTL, and HSUL outputs are not true differential outputs. These I/O standards use two single-ended outputs with the second output programmed as inverted.

Figure 93. Differential SSTL I/O Standard TerminationThis figure shows the details of Differential SSTL I/O termination on Cyclone® V devices.


Figure 94. Differential HSTL I/O Standard TerminationThis figure shows the details of Differential HSTL I/O standard termination on Cyclone® V devices.