Venu, The C_comp_pullup, C_comp_pulldown, C_comp_power_clamp, and C_comp_gnd_clamp subparameters of the [Model] keyword are officially available since the IBIS v4.0 specification. The HSPICE B-element had it before that version of the specification was ratified. I am not sure about which other tools support it. Arpad =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D -----Original Message----- From: Ummalaneni, Venu Babu (Venu) [mailto:venubabu@xxxxxxxxx]=20 Sent: Tuesday, September 14, 2004 11:23 PM To: Muranyi, Arpad; si-list Subject: RE: [SI-LIST] Re: What frequency are IBIS models good to? Muryani, Do you mean to say this option of '4-way splitting mentioned above' is available in latest IBIS versions? Regards, Venu Babu. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu