IBIS Models for Intel® Devices

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 Intel® 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 on how to use IBIS models in your simulations, or learn more on generating IBIS files with Intel® Quartus® Prime software.

Table 1 explains the IBIS File Revision Numbering Convention used in new device IBIS models starting from Cyclone® III and Stratix® III device IBIS models.

Table 1. Device IBIS Models File Revision Numbering Convention

IBIS File Revisions Description
0.x silicon and file in development
1.x pre-silicon file data from silicon model only
The models are designated as "Preliminary" and have not been correlated against physical device operation.
2.x file correlated to actual silicon measurements The models are designated as "Correlated" and have been correlated against physical device operation.
3.x mature product, no more changes likely The models are designated as "Final" and have been correlated against physical device operation. There will not be any planned changes to the models.

Table 2 shows IBIS models for Intel® devices.

To download IBIS models, read the licensing terms and conditions and click the IBIS model links in the Table 2.

I have read and accepted the licensing terms and conditions.

Table 2. IBIS Models for Intel® Devices

Device Family Part Number Begins With List of Models (1) Package RLC Values (2) IBIS Model (3) IBIS Model Revision (3) Last IBIS Model Update (3)
ACEX® EP1K acex1k models.xls acex1k rlc.xls acex1k.zip 1.3 Jun 30, 2004
APEX™ 20K EP20K apex20k models.xls apex20k rlc.xls apex20k.zip 1.4 Mar 30, 2004
APEX™ 20KC EP20K apex20kc models.xls apex20kc rlc.xls apex20kc.zip 1.2 May 30, 2001
APEX™ 20KE EP20K apex20ke models.xls apex20ke rlc.xls apex20ke.zip 1.5 Jun 30, 2004
APEX™ II EP2A apex2 models.xls apex2 rlc.xls apex2.zip 1.2 Dec 30, 2001
Intel® Arria® 10 10A arria10 models.xls 
arria10 rlc.xls
3.2 March 13, 2018
arria10 auto grade models.xls arria10 auto grade rlc.xls
arria10 auto grade.zip 
3.2 March 13, 2018
Arria® GX EP1AGX arriagx models.xls arriagx rlc.xls arriagx.zip 1.0 May 8, 2007
Arria® II GX EP2AGX arria2gx models.xls arria2gx rlc.xls arria2gx.zip 2.0 Mar 26, 2010
Arria® II GZ EP2AGZ arria2gz models.xls arria2gz rlc.xls arria2gz.zip 2.0 Dec 6, 2010
Arria® V 5A arria5 models.xlsx arria5 rlc.xlsx arria5.zip 3.0 Feb 05, 2018
Cyclone® EP1C cyclone models.xls cyclone rlc.xls cyclone.zip 1.7 May 6, 2009
Cyclone® II EP2C cyclone2 models.xls cyclone2 rlc.xls cyclone2.zip 1.6 Jul 30, 2007
Cyclone® III EP3C cyclone3 models.xls cyclone3 rlc.xls cyclone3.zip 3.1 Jul 24, 2009
Cyclone® III LS EP3CLS cyclone3ls models.xls cyclone3ls rlc.xls cyclone3ls.zip 2.0 Dec 7, 2009
Cyclone® IV EP4C cyclone4 models.xls cyclone4 rlc.xls cyclone4.zip 2.0 Jul 16, 2010
Cyclone® V 5C cyclone5 models.xls cyclone5 rlc.xls cyclone5.zip 3.0 Feb 05, 2018
Intel® Cyclone® 10 GX  10CX cyclone10gx models.xls cyclon10gx rlc.xls cyclone10gx.zip 3.1 Mar 15, 2018
Intel® Cyclone® 10 LP  10CL cyclone10lp models.xls cyclone10lp rlc.xls cyclone10lp.zip 3.0 Aug 1, 2017
FLEX® 10K EPF10K flex10k models.xls flex10k rlc.xls flex10k.zip 1.6 Jul 30, 1998
FLEX® 10KA EPF10K flex10ka models.xls flex10ka rlc.xls flex10ka.zip 1.5 Aug 30, 1999
FLEX® 10KE EPF10K flex10ke models.xls flex10ke rlc.xls flex10ke.zip 1.2 Oct 30, 1998
FLEX® 6000 EPF6 flex6000 models.xls flex6000 rlc.xls flex6000.zip 1.3 Jul 30, 1998
HardCopy® II HC2 hardcopy2 models.xls hardcopy2 rlc.xls hardcopy2.zip 1.4 Apr 19, 2007
HardCopy® III HC3 hardcopy3 models.xls hardcopy3 rlc.xls hardcopy3.zip 2.0 Jul 16, 2010
HardCopy® IV HC4 hardcopy4 models.xls hardcopy4 rlc.xls hardcopy4.zip 2.0 Oct 15, 2010
HardCopy® Stratix® HC1S hcstratix models.xls hcstratix rlc.xls hcstratix.zip 3.5 Mar 30, 2007
MAX® 3000A EPM3 max3000a models.xls max3000a rlc.xls max3000a.zip 2.0 Oct 28, 2005
MAX® 7000AE EPM7 max7000ae models.xls max7000ae rlc.xls max7000ae.zip 2.0 Oct 28, 2005
MAX® 7000B EPM7 max7000b models.xls max7000b rlc.xls max7000b.zip 2.0 Oct 28, 2005
MAX® 7000S EPM7 max7000s models.xls max7000s rlc.xls max7000s.zip 2.0 Oct 28, 2005
MAX® II EPM max2 models.xls max2 rlc.xls max2.zip 2.2 Dec 14, 2007
MAX® V 5M max5 models.xls max5 rlc.xls max5.zip 3.0 Feb 05, 2018
Intel® MAX® 10 10M max10 models.xls max10 rlc.xls  max10.zip 3.0 Apr 28, 2016
Stratix® EP1S stratix models.xls stratix rlc.xls stratix.zip 2.4 May 30, 2005
Stratix® GX EP1SGX stratixgx models.xls stratixgx rlc.xls stratixgx.zip 2.5 Mar 30, 2007
Stratix® II EP2S stratix2 models.xls stratix2 rlc.xls stratix2.zip 4.9 Mar 30, 2007
Stratix® II GX EP2SGX stratix2gx models.xls stratix2gx rlc.xls stratix2gx.zip 1.1 Mar 30, 2007
Stratix® III EP3S stratix3 models.xls stratix3 rlc.xls stratix3.zip 2.9 Aug 27, 2009
Stratix® IV EP4S stratix4 models.xls stratix4 rlc.xls stratix4.zip 2.0 Sep 9, 2009
Stratix® V 5S stratix5 models.xlsx stratix5 rlc.xls stratix5.zip 3.0 Feb 05, 2018
Intel® Stratix® 10 GX, SX, MX and TX   stratix10-model-list-v3p0.xlsNew stratix10-pkg-rlc-v3p0.xlsNew stratix10_v3p0.zipNew 3.0 Mar 12, 2019
Configuration Devices EPC epc_models.xls - epc1_2.zip 2.2 Feb 28, 2005
epc4_8_16q100.zip 2.1 Feb 28, 2005
epc16uc88.zip 2.0 Sep 30, 2003
epcs1.zip 1.3 Jan 23, 2014
epcs4.zip 1.3 Jan 23, 2014
epcs16.zip 1.1 Jan 23, 2014
epcs64.zip 1.1 Jan 23, 2014
epcs128.zip 1.0 Jan 23, 2014
epcq16.zip 1.0 Jan 23, 2014
epcq32.zip 1.0 Jan 23, 2014
epcq64.zip 1.0 Jan 23, 2014
epcq128.zip 1.0 Jan 23, 2014
epcq256.zip 1.0 Jan 23, 2014
epcq512.zip 1.0 Oct 15, 2015
epcql256.zip 1.0 Oct 15, 2015
epcql512.zip 1.0 Oct 15, 2015
epcql1024.zip 1.0 Oct 15, 2015
epcq4a.zip New 1.0 Dec 13, 2017
epcq16a.zip New 1.0 Dec 13, 2017
epcq32a.zip New 1.0 Dec 13, 2017
epcq64a.zip New 1.0 Dec 13, 2017
epcq128a.zip New 1.0 Dec 13, 2017


  1. Files in this 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 the most recently updated file.
  2. Files in this 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 the most recently updated file.
  3. These 3 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. 

If you have any questions about the contents of your IBIS files, visit the mySupport website.