US Sources for old ICs
bfranchuk at jetnet.ab.ca
Wed Oct 26 12:42:51 CDT 2005
Paul Koning wrote:
>Check out Lattice. They have nice CPLDs, some approaching FPGA
>complexity. Many have "easy" packaging -- no DIP but certainly PLCC.
>And there are whole series that run on 5 volts. I've used them; the
>tools are pretty good too. (Win only, as usual, sorry...)
I am liking the small CPLD's more and more mainly that you don't have to
configure them on power up.
I use Atmel since I can get the devopment kit and CPLD's from Digi-Key.
It is about 120 clb's each for the 2 chips making up the data path and
90? for the
unfinished control unit.
>Yes, new chips have more power pins because they have higher clock
>frequencies. Some of them need it for current rating, too, but the
>usual reason is to keep the inductance low. With a 100 MHz clock,
I allways wonder what the real clock speed is, after marketing is done
with it. :)
Ok , you can snicker at me ... I am using lowest speed err lowest cost
chips, but then I just plan to
run at 6800 speeds.
PS. If somebody could sell me a low cost high speed paper tape
punch/reader I might even
do a PDP ?? clone to stay on topic.
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