> On 2018-09-14, at 16:13, Gerrit Heitsch <gerrit@laosinh.s.bawue.de> wrote: > >>>>> I would find replacement for: 6530 / 6560 / 6561 / 6581.... more >>>>> interesting... >>>> >>>> 6530, 6532, 6526, 6525 and 6523 would be rather simple to implement >>>> and it might even be possible to do all in one chip, with some >>>> preprogram thing to choose which of them it should be. >>> >>> Unfortunatly that's not the case. Those chips are NMOS. With their >>> output drivers you can do things (and they were done) that you at >>> least shouldn't do with CMOS drivers. >> That depends on how the new IC's are being manufactured. > > Nobody is making NMOS anymore as far as I know. Isn't it possible to "cover" the chip's internal CMOS outputs with NMOS compatible external ones? -- SD! - http://e4aws.silverdr.com/Received on 2018-09-14 17:00:31
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