Intel Agilex® 7 General-Purpose I/O User Guide: M-Series

ID 772138
Date 12/04/2023
Public
Document Table of Contents
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2.4.1.3. Single-Ended I/O Standards External Termination

The SSTL, HSTL, POD, and LVSTL I/O standards require a termination voltage. The internally-generated reference voltage of the receiving device tracks the termination voltage of the transmitting device.

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 required.

Note: You cannot use RS and RT OCT simultaneously. For more information, refer to the related information.
Table 16.  I/O Standards Required External Termination
I/O Standard External Termination Scheme
1.3 V LVCMOS No on-board termination required
1.2 V LVCMOS No on-board termination required
1.1 V LVCMOS No on-board termination required
1.05 V LVCMOS No on-board termination required
1.0 V LVCMOS No on-board termination required
SSTL-12 Single-ended SSTL I/O standard termination
HSTL-12 Single-ended HSTL I/O standard termination
HSUL-12 No on-board termination required
POD12 Single-ended POD I/O standard termination
POD11 Single-ended POD I/O standard termination
LVSTL11 Single-ended LVSTL I/O standard termination
LVSTL105 Single-ended LVSTL I/O standard termination
LVSTL700 Single-ended LVSTL I/O standard termination
Differential SSTL-12 Differential SSTL I/O standard termination
Differential HSTL-12 Differential HSTL I/O standard termination
Differential HSUL-12 No on-board termination required
Differential POD12 Differential POD I/O standard termination
Differential POD11 Differential POD I/O standard termination
Differential LVSTL11 Differential LVSTL I/O standard termination
Differential LVSTL105 Differential LVSTL I/O standard termination
Differential LVSTL700 Differential LVSTL I/O standard termination
Figure 11. SSTL and HSTL I/O Standards External Termination


Figure 12. POD I/O Standards External Termination


Figure 13. LVSTL I/O Standards External Termination