🚀 go-pugleaf

In article <943@baird.cs.strath.ac.uk> gtaylor@cs.strath.ac.uk (George M Taylor IE87) writes:
   >
   >I'm trying to build some sort of Teletext capture and decode circuit on a 
   >MultiBus board for use with our UNIX network.
   >
   >However I'm having problems finding any ICs that will simplify the job.
   >
   >Does anyone know anything about the signetics chips:
   >SAA5020, SAA5030, SAA5040,

I think these "2nd Generation" chips are still available but they are quite
old and are much less flexible than the later generation "CCT" (computer
controlled teletext) chips. The SAA numbers I can't remember but they are
in the similar range (SAA5...). They have I2C bus interfaces and are ideal
for your application. They also have the ghost row capabilities and multi
page capture. From what I've seen of the other chips from Plessey, TI,
and GI the Mullard/Signetics/Philips chips are streets ahead. There is an
evaluation board available from philips which is worth getting hold of
if your serious.


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