Yulquen74
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Re: Quartus II 13.0.1 and EPM7256AQC208-7
My next project is actually a more advanced version of a previous project where I have used the ATF1508. I kind of like them as they work nicely in a 5V environment. The problem is I have already used up 99% of the logic cells of the chip. I also need a lot more I/O lines, so the ATF1508 series unfortunately falls short for this one. Splitting the logic to several chips is also not a solution in this case.1.7KViews0likes0CommentsRe: Quartus II 13.0.1 and EPM7256AQC208-7
I'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.1.8KViews0likes2CommentsQuartus II 13.0.1 and EPM7256AQC208-7
I have a design idea in which the EPM7256AQC208-7 would be a good fit with regards to number of I/O's, logic capacity, voltage levels and speed/delay. However, as I understand this device is only supported up to Quartus II 13.0.1, so I downloaded and installed that sofware version. When defining the project, and selecting chip type, the closest I get is EPM7256AEQC208-7, so MAX7000AE instead of MAX7000A. As I understand the 7000AE is a slightly improved version of the 7000A, but are they binary compatible with regards to the programming file generated by the fitter? Thanks in advance for any advice in this matter.1.8KViews0likes8Comments