On Thu, 4 Nov 1999, Nicolas Welte wrote: > Sam Laur wrote: > > One other chance would be Russian semiconductors, > > > > http://www.twi.ch/~e5zingg1/ > > > > They list PLS100-equivalents at 2.90 Swiss Francs (in lots of 10), or > > PLS101-equivalents at 1.90 Francs. Military versions also available :-) > > Interesting, because I'm living near the Swiss border. I don't think > that it is very useful to program a C64 PLA, they're still readily > available. But the other ones, like the 906114-02 to -05 of the PET and > CBM-II series might be good targets, as well as the one from the Plus/4. > What kind of programmer is used to burn these devices? The datasheet > doesn't say anything about that. Does it make any difference if the > PLS100 or the PLS101 is used (3-state vs OC output)? Yes, it makes a difference. Open Collector requires pull-up resistors, which the C64 does not have. The PLS100 is required. I've seen programmers advertised at well over $1000 US, well out of my price range. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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