IBIS Models for FPGA Devices

IBIS models for FPGA devices support a wide variety of Input/output features and cover minimum, typical, and maximum process, voltage, and temperature conditions.

Current Devices Mature Devices Legacy Devices Related Links

The input/output buffer information specification (IBIS) is a device-modeling standard that was developed in 1993 by a consortium of companies from within the electronic design industry. IBIS allows the development of device models that preserve the proprietary nature of integrated circuit device designs, while at the same time providing information-rich models for signal integrity and electromagnetic compatibility (EMC) analysis.

IBIS models for Altera® devices support a wide variety of I/O features and cover minimum, typical, and maximum process, voltage, and temperature conditions. Information contained within the IBIS files is for modeling purposes only and is not guaranteed.

Read the instructions available in each device's IBIS user guide on how to use IBIS models in your simulations.

Current FPGAs and Programmable Devices
Device Family	Part Number Begins With	List of Models¹	Package RLC Values²	IBIS Models³	Last IBIS Model Update³
Agilex® 7	AGM	agilex7 device m series model list.xlsx	agilex7 m series rlc.xlsx	agilex7 device m series.zip	July 2026
Agilex® 7	AGF/AGI	agilex7 device f series i series model list.xlsx	agilex7 f series i series rlc.xlsx	agilex7 device f series i series.zip	July 2026
Agilex® 5	A5D, A5E	agilex5 device model list.xlsx	agilex5 device rlc.xlsx	agilex5 device.zip	July 2026
Agilex® 3	A3C	agilex3 device model list.xlsx	agilex3 device rlc.xlsx	agilex3 device.zip	July 2026
Stratix® 10	1S	stratix10 models.xls	stratix10 rlc.xls	stratix10.zip	Aug 2022
Arria® 10	10A	arria10 models.xls	arria10 rlc.xls	arria10.zip	April 2024
Cyclone® 10 GX	10CX	cyclone10gx models.xls	cyclon10gx rlc.xls	cyclone10gx.zip	Mar 2018
Cyclone® 10 LP	10CL	cyclone10lp models.xls	cyclone10lp rlc.xls	cyclone10lp.zip	Aug 2017
MAX® 10	10M	max10_model_list.xls	max10 rlc.xls	max10.zip	Feb 2025
Arria® V	5A	arria5 models.xlsx	arria5 rlc.xlsx	arria5.zip	Feb 2018
Cyclone® V	5C	cyclone5 models.xls	cyclone5 rlc.xls	cyclone5.zip	Mar 2020
MAX® V	5M	max5 models.xls	max5 rlc.xls	max5.zip	Feb 2018
Cyclone® IV	EP4C	cyclone4 models.xls	cyclone4 rlc.xls	cyclone4.zip	Jul 2010
Notes: Files in the List of Models column show the supported IBIS models. Updates to this column will not be reflected on the date listed in the 'Last IBIS Model Update' column. An Update tag indicates that the file has been updated recently. Files in Package RLC Values column show the resistance, inductance, and capacitance values for different packages. Updates to this column will not be reflected on the date listed in the 'Last IBIS Model Update' column. An Update tag indicates that the file has been updated recently. These three columns are inter-related. In each row, the 'IBIS Model Revision' column shows the IBIS model version contained in the zip file of the 'IBIS Model' column, while the 'Last IBIS Model Update' column corresponds to the date the zip file was uploaded.

Mature FPGAs and Programmable Devices
Device Family	Part Number Begins With	List of Models¹	Package RLC Values²	IBIS Model³	Last IBIS Model Update³
Stratix® V	5S	stratix5 models.xlsx	stratix5 rlc.xls	stratix5.zip	Feb 05, 2018
Stratix® IV	EP4S	stratix4 models.xls	stratix4 rlc.xls	stratix4.zip	Sep 9, 2009
Stratix® III	EP3S	stratix3 models.xls	stratix3 rlc.xls	stratix3.zip	Aug 27, 2009
Cyclone® III	EP3C	cyclone3 models.xls	cyclone3 rlc.xls	cyclone3.zip	Jul 24, 2009
Cyclone® III LS	EP3CLS	cyclone3ls models.xls	cyclone3ls rlc.xls	cyclone3ls.zip	Dec 7, 2009
Cyclone® II	EP2C	cyclone2 models.xls	cyclone2 rlc.xls	cyclone2.zip	Jul 30, 2007
Arria® II GX	EP2AGX	arria2gx models.xls	arria2gx rlc.xls	arria2gx.zip	Mar 26, 2010
Arria® II GZ	EP2AGZ	arria2gz models.xls	arria2gz rlc.xls	arria2gz.zip	Dec 6, 2010
MAX® II	EPM	max2 models.xls	max2 rlc.xls	max2.zip	Dec 14, 2007
Configuration Devices	EPC	epcqa_models.xls	-	epcq4a.zip epcq16a.zip epcq32a.zip epcq64a.zip epcq128a.zip
Notes: Files in the List of Models column show the supported IBIS models. Updates to this column will not be reflected on the date listed in the 'Last IBIS Model Update' column. An Update tag indicates that the file has been updated recently. Files in Package RLC Values column show the resistance, inductance, and capacitance values for different packages. Updates to this column will not be reflected on the date listed in the 'Last IBIS Model Update' column. An Update tag indicates that the file has been updated recently. These three columns are inter-related. In each row, the 'IBIS Model Revision' column shows the IBIS model version contained in the zip file of the 'IBIS Model' column, while the 'Last IBIS Model Update' column corresponds to the date the zip file was uploaded.

Legacy Devices

For IBIS models related to discontinued devices, you can find more information on the FPGA Device and Product Support Collections page listed in the table for Legacy (obsolete) FPGAs and Programmable Devices.