I've used these and they work fine - problem is, not much I'm interested
in is available in PLCC. Picked up a bunch of obsolete Xilinx CPLDs in
a PLCC44 package but they're really not good for much.
And all modern FPGAs and a lot of the more advanced processors are in
BGA format which is hopeless for home manufacture :-(
- Rick
PLCCs are rather obsolete. I use TSSOPs and QFPs, since they can be
soldered at home with a standard 1mm tip soldering iron and
water-soluble flux.
Xilinx and Altera still make FPGAs in QFP packages up to 200 pins. I'm
currently designing a couple boards using the Spartan 3E series. I will
solder all the FPGAs myself.
My newest and most exotic PC board design is a flex board with tiny QFN
parts, but it will be assembled by machines. 60,000 LEDs on an overcoat.
Should attract a bit of attention.
--
David Forbes, Tucson AZ
http://www.cathodecorner.com/
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