UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 15365

IBIS/SPICE Models - How do these models account for the speed grade of a device?

描述

General Description:

How do Xilinx IBIS and SPICE models take the speed grade of a device into account?

解决方案

Speed grades have no impact on IBIS and SPICE models. Because I/O transistors are considerably larger than core transistors, I/O switching speed is not considered when a device is labeled with a particular speed grade. Instead, both IBIS and SPICE models offer Min, Typical, and Max models in order to account for process, voltage, and temperature variation.

AR# 15365
日期 12/15/2012
状态 Active
Type 综合文章
的页面