Anybody got a sheet for a Texas Instruments TMS3874 digital clock IC ? Loads
>of references on the 'net, and people claiming to be suppliers and having a
>datasheet, but you just finish up getting led down the path to companies in
>China, with no sign of the actual sheet ...
>
>Just the pin-out will do if nothing else available. It's a 'rescue' project
>for a very old mate, so not desperately important, but it would be nice to
>get it going for him again, as it was an apprentice piece that he built 38
>years ago, and it has worked all that time until last week, when it just
>suddenly stopped. I'm loathe to believe that the IC itself has failed, but
>you never know ...
>
>Arfa
I made a similar clock back in the day which still works well. It originally used 7400 series TTL logic and Monsanto MAN-1 leds. A few years later, I updated it to one of those "new fangled" clock chips. Anyway, I just wenting looking for it in case it has the same chip, but no such luck. It uses a National MM5311. There are plenty of data sheets for that on the net, but not for your TI. Any chance the pinouts are the same/similar?
Pat