... : > : at
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you can find FPGA BGA pulls at price from : > ^^^^^ : > What do you mean here? : >
: > : $9 for 300,000 gates and $49 for 1M Gates FPGA
: I got 17pcs of XCV600 for $99 and XCV2000 for $49 : those are all "pulled" and need reballing
What reballing service do you use and what price to expect?
: > : even if it looks undoable at the first look BGA chips : > : with ball distance of 1mm+ and not full grid are easily : > : used in wire wrap proto boards. : >
: > Which FBGA FPGA is not full grid?
:
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: sorry I did mean the BGA inner balls are missing, FPGA array is full of
Virtex is mostly BGA (1.27 mm ball spacing). That's an easy one to get prototyping boards for at a sensible price, as 0.15mm/0.15mm lines/spaces and 0.3 mm for minimum drill work a long way and the well known prototyping companies ( M&V, PCB Pool) deliver these rules. Also Virtex only occupies four rows from the outside (no full array), while more recent families are mostly FBGA (1.0 mm ball pitch) and those rare in BGA(1.27mm) (BG575/BG728 for Virtex II) are fully occupied...
Virtex also has the problem, that it isn't supported by Webpack ...
Cyclone in a QFP240 package seems to have the most reachable pins with a recent family.
Bye