Quote:
Originally Posted by SiriusHardware
If you don't mind potentially wasting one more device you might like to try programming an MH74S287 as though it is an SN74S287, if your programmer supports those, rather than as a DM74S287.
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Unfortunately the programmer doesn't explicitly support the SN74S287, so I cannot try it.
I just bought a SN74S287 on ebay, I will attempt to program it as a DM74S287 or an 82S129 and I will report back.