Spartan-3 / -3E – Spartan-3 / -3E I / O是否耐5V？我可以用更高的电压驱动I / O吗？

问题描述

Spartan-3 / -3E I / O是否耐5V？我可以用高于I / O标准VIH的电压驱动Spartan-3 / -3E I / O吗？

解决/修复方法

Spartan-3 / -3E I / O有一对钳位二极管，连接到VCCO（专用引脚的VCCAUX）和GND，如数据表中所示： http ： //www.xilinx.com/support/documentation/ data_sheets / ds099.pdf http://www.xilinx.com/support/documentation/data_sheets/ds099.pdf http://www.support.xilinx.com/xlnx/xweb/xil_publications_display.jsp?sGlobalNavPick=&sSecondaryNavPick=&category= -1209725＆iLanguageID = 1 http://www.support.xilinx.com/xlnx/xweb/xil_publications_display.jsp?sGlobalNavPick=&sSecondaryNavPick=&category=-1211389&iLanguageID=1 -0.60 ….. 2.80mA ……. .2.96mA ……. 5.51mA http://www.support.xilinx.com/xlnx/xweb/xil_publications_display.jsp?sGlobalNavPick=&sSecondaryNavPick=&category=-1209725&iLanguageID=1(Xilinx 答复19777） 。 http://www.xilinx.com/support/documentation/application_notes/xapp459.pdf http://www.xilinx.com/support/documentation/application_notes/xapp453.pdf http://www.xilinx.com/support/ documentation / user_guides / ug331.pdf http://www.xilinx.com/support/documentation/user_guides/ug332.pdf