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Interfacing Cyclone III and Cyclone IV devices with 3.3/3.0/2.5V LVTTL/LVCMOS I/O systems

Posted: 22 Dec 2009 ?? ?

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Keywords:LVCMOS? I/O systems? Cyclone III IV?

Altera Cyclone III and Cyclone IV devices are compatible with and support 3.3/3.0/2.5V LVTTL/LVCMOS I/O standards. This application note provides background information for LVTTL/LVCMOS I/O standard signal integrity issues and describes guidelines for interfacing 3.3/3.0/2.5V LVTTL/LVCMOS I/O standards in Cyclone III and Cyclone IV devices.

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