You can always do an extrapolation to the -Vdd/2*Vdd limits. Tom Dagostino Teraspeed(R) Labs 13610 SW Harness Lane Beaverton, OR 97008 503-430-1065 503-430-1285 FAX tom@xxxxxxxxxxxxx www.teraspeed.com Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 401-284-1827 -----Original Message----- From: owner-ibis@xxxxxxxxxxxxxx [mailto:owner-ibis@xxxxxxxxxxxxxx] On Behalf Of Muniswara Reddy Vorugu Sent: Wednesday, December 10, 2008 3:28 AM To: ibis@xxxxxxxxxxxxxx; IBIS-ATM Subject: [IBIS] IV tables Voltage range Hi, Is it compulsory to have the IV table ranging from -VDD to 2*VDD? I have got a model with range -0.5*VDD to 1.5*VDD. Is it a quality issue? IBIS golden parser did not give any error/warning. For example [Voltage Range] 2.5 NA NA [Pullup Reference] 2.5 NA NA [Pulldown Reference] 0.0 NA NA [POWER Clamp Reference] 2.5 NA NA [GND Clamp Reference] 0.0 NA NA Is it compulsory for POWER clamp and ground clamp to be in range -2.5 to 5.0 I have got a model from range -1.25 to 3.75. Is it a quality issue. Thanks, Muniswar -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@xxxxxxxxxxxx |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or e-mail a request to ibis-request@xxxxxxxxxxxxx | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 --------------------------------------------------------------------- IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/ IBIS Macro reflector: //www.freelists.org/list/ibis-macro To unsubscribe send an email: To: ibis-macro-request@xxxxxxxxxxxxx Subject: unsubscribe