Re: Tesla MH74S571 programming.
Yes, I concede this has parallels in the world of EPROMs where every manufacturer's version of (let's say, 2764) would offer its own fast-programming algorithm, for which the specific device AND manufacturer had to be selected in order for it to work.
The difference was that with EPROMs there was always a fall-back 'slow' algorithm which would work with any 2764, usually accessed by choosing 'Manufacturer: Generic'.
No such luck with these bipolar PROMs, unfortunately.
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