Quote:
Originally Posted by SiriusHardware
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If anyone has a Tesla MH74S287 and a programmer which can natively programme the SN74S287 then it would be great if they could try programming the MH74S287 'as though' it was an SN74S287.
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Well as you got it confirmed that Tesla ones have blank state of 0, and would appear that TI SN74Sxxx ones have blank state of 1, then I certainly doubt trying this would work.
And unfortunately, finding programmers from the last 20+ years that support the TI SN74Sxxx ones, seems even more difficult than for Tesla MH74Sxxx.
I've searched the >900 page pdf latest device list of the ELNEC-designed Dataman 48Pro one, that did a Tesla MH74S287 one OK, and that doesn't list any TI 74Sxxx types at all (or any MMI 63xx-xx ones, with only 2 not a common type of Harris ones - So no way of programming those ones I've got, unless they do program the same as AMD/Philips/National equivalents).