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aayal1
New Contributor
New Contributorcyclone 3 pci clamp diode - interface with 5V inputs question for intel support.
hello, my company uses the cyclone family of FPGA in many of our project. in a current project we need to interface a cyclone 3 FPGA with a device that outputs 5V for logic high. our understanding...
YuanLi_S_Intel
Regular Contributor
Regular ContributorHi Amir,
I don't think this is possible. The PCI Clamp is meant for 3.3V / 3.0V interfacing. Moreover, if 5V is supplied to Cyclone III, it might damage the I/O buffer as well.
The absolute maximum rating for Vin is 3.95V only.
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyc3/cyc3_ciii52001.pdf
Thank You
