This is a question related to input pin on 1.8V Spartan IIE. Datasheets said it is "5V tolerant with external resistor." What should the value of this external resistor be? What value in the datasheet are you based on to calculate the necessary voltage drop on this resistor? I am mainly a firmware person, just start looking into FPGAs... Thanks!
1.8v SpartanIIE
Jan 15, 2004
2 Replies
100 Ohms...
Greg Deuerling
Fermi National Accelerator Laboratory
P.O.Box 500 MS368 Batavia, IL 60510
(630)840-4629 FAX (630)840-5406
Electronic Systems Engineering Group
Work: egads_AT_fnal.gov, remove '_AT_'
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