Interfacing Intel® FPGA Devices with 3.3/3.0/2.5 V LVTTL/LVCMOS I/O Systems
Transmission line effects can cause a large voltage deviation at the receiver. This deviation can damage the input buffer, especially for I/O standards without termination, such as LVTTL or LVCMOS.
To manage signal integrity issues and protect the input pin, follow the guidelines in this document if you interface 3.3 V, 3.0 V, 2.5 V LVTTL or LVCMOS I/O systems with these Intel® device families:
- Cyclone® III
- Cyclone® IV
- Intel® Cyclone® 10 LP
- Intel® MAX® 10
Note: In this document, the term "supported Intel® devices" refers to devices in the listed device families only.
To ensure device reliability and proper operation, you must design the I/O interfaces within the specifications recommended by the guidelines in this document.
Did you find the information on this page useful?