Intel® Stratix® 10 General Purpose I/O User Guide

ID 683518
Date 9/13/2023
Public
Document Table of Contents

2.5. External I/O Termination for Intel® Stratix® 10 Devices

Table 15.  External Termination Schemes for Various I/O Standards
I/O Standard External Termination Scheme
3.3 V LVTTL/3.3 V LVCMOS No external termination required
3.0 V LVTTL/3.0 V LVCMOS
2.5 V LVCMOS
1.8 V LVCMOS
1.5 V LVCMOS
1.2 V LVCMOS
SSTL-18 Class I and Class II Single-Ended SSTL I/O Standard Termination
SSTL-15 Class I and Class II
SSTL-15 15 No external termination required
SSTL-135 15
SSTL-125 15
SSTL-12
POD12 Single-Ended POD I/O Standard Termination
1.8 V HSTL Class I and Class II Single-Ended HSTL I/O Standard Termination
1.5 V HSTL Class I and Class II
1.2 V HSTL Class I and Class II
HSUL-12 No external termination required
Differential SSTL-18 Class I and Class II Differential SSTL I/O Standard Termination
Differential SSTL-15 Class I and Class II
Differential SSTL-15 15 No external termination required
Differential SSTL-135 15
Differential SSTL-125 15
Differential SSTL-12
Differential POD12 Differential POD I/O Standard Termination
Differential 1.8 V HSTL Class I and Class II Differential HSTL I/O Standard Termination
Differential 1.5 V HSTL Class I and Class II
Differential 1.2 V HSTL Class I and Class II
Differential HSUL-12 No external termination required
LVDS LVDS I/O Standard Termination
RSDS RSDS/mini-LVDS I/O Standard Termination
Mini-LVDS
LVPECL Differential LVPECL I/O Standard Termination
15 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.