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04/08/01 18:19
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 		 #10682 - RE: Erik & Peter
Hi Andy,

the PSD parts looking nice on using the standard 8051 at 12MHz.
But today many 8051 derivates have a faster timing and working at up to 40MHz (e.g. DS80C390).
Then you need flash memory with 50ns or faster. And the PSD devices only about 120ns fast.
Some PSD devices also specified for 90ns and 70ns, but they are very hard to get.


Peter


List of 24 messages in thread
TopicAuthorDate
Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Erik Malund            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Erik Malund            01/01/70 00:00      
RE: Peter            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Erik Malund            01/01/70 00:00      
RE: All            01/01/70 00:00      
RE: Erik Malund            01/01/70 00:00      
RE: Erik Malund            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      
RE: Erik & Peter            01/01/70 00:00      
RE: Erik & Peter            01/01/70 00:00      
RE: Whats a good replacement for the 8255?            01/01/70 00:00      

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