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

ID 683665
Date 10/18/2023
Public
Document Table of Contents

5.8.2.1. Differential HSTL, SSTL, and HSUL Termination

Differential HSTL, SSTL, and HSUL inputs use LVDS differential input buffers with RD support.

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 104. Differential SSTL I/O Standard TerminationThis figure shows the details of Differential SSTL I/O termination on Stratix® V devices. This is not applicable for differential SSTL-12, differential SSTL-15, differential SSTL-125, differential SSTL-135, and differential HSUL-12 I/O standards.


Figure 105. Differential HSTL I/O Standard TerminationThis figure shows the details of Differential HSTL I/O standard termination on Stratix® V devices. This is not applicable for differential HSUL-12 I/O standard.