利用Xilinx CoolRunner-II CPLD进行水平转换

利用Xilinx CoolRunner-II CPLD进行水平转换
Application Note: CoolRunner-II

R
Level Translation Using Xilinx
CoolRunner-II CPLDs
XAPP785 (v1.0) June 22, 2005


Summary As electronic design has advanced over the years, more and more I/O standards have been
created. Since the days when the 5V CMOS and TTL standards were the prevalent standards
with which to design logic circuits, there have been a lot of changes. Today, there are many
voltage standar