New Contributor
ContributorThe parts you mentioned reached obsolescence many years ago. Even if you could find a few in a dusty bin in the back of somebody's warehouse, for a new design it would be inadvisable to choose a part that hasn't been manufactured nor supported for many years.
I'd suggest that you look at Intel's (and others) current portfolio and identify suitable parts that are currently available, supported, and in active production.
-Roee
New ContributorI'm fully aware that the part is now obsolete, and nothing would be better than using new parts and up to date software, I totally agree with you there.
I have used the filters of several parts distributors I can easily order parts from (mouser, digikey, farnell, rs, elfa and so on) to try and find available CPLD's with at least 160 I/O lines, 7.5ns or better, and suitable for 3.3V/5V environment and a package that is not a BGA, very little is left.
Digikey offers the EPM7256AQC208-7 as a Rochester marketplace product, and the same part is also available from several sellers on Ebay at much lower prices.
Although I have access to a production line where BGA is possible, this is for a hobby project, so at least I would like the first version to be hand solderable/reworkable, although I might switch to an BGA incarnation later on if I get it working, unless I need heaps of level shifters.
3.3V I/O support would be mandatory.
ContributorYep, I hear ya. Support for 3.3V I/O is still fairly common in modern devices, but long gone are the days of 5V-tolerant I/O and of hand-solderable QFP packages.
To your original question, I did a quick search and came across the thread below. You could try the solution described there of hand-editing your QSF file and see if Quartus 13.0.1 accepts your p/n that way:
New ContributorThanks, I will check it out!
