[vcf-midatlantic] DEC 5380 chip

[Herb Johnson]

> Friends, google has not been kind to me. Looking for the datasheet
 > on the 5380 chip used in my PDP-8/e in the M8650 TTY board..

Run my reply past David Gesswein. But the 5380 on the M8650 schematic, 
looks a lot like Signetics SP380, down to the pinouts. (don't be 
confused by OR vs AND, use Boolean logic). you can get SP380's on eBay 
for several dollars. Or ask some PDP-8 owners. There's also some notes 
on this page:

http://tronola.com/html/ram_for_pdp-8e.html

which suggest the DEC S380 is your "5380". Also look at some DEC 
handbooks about the Omnibus. And of course, stare at your board, see the 
brand and number on the chips versus names in the schematic.

DEC is your friend here, Google merely introduced you to them. ;)

Herb Johnson
stumbler with 8's



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Herbert R. Johnson, New Jersey in the USA
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