9 Feb
2016
9 Feb
'16
2:22 a.m.
2016-02-09 10:48 GMT+01:00 Holm Tiffe <holm at freibergnet.de>:
Christian Corti wrote:
Not all, some of them still use 7Bit:
http://www.minuszerodegrees.net/memory/4164.htm
Yes. The chips used in this case were Fujitsu MB8264-15. They seemed to
work fine as they used 7 bit refresh, but it now is so long ago so I have
forgotten the details.
On Mon, 8 Feb 2016, Mattis Lind wrote:
>layers of of a multilayer PCB. As mentioned earlier in this thread I
did
>such a conversion on a MSV11-D board more
than 25 years ago and then I
had
to lift up
this pin and connect it via an extra wire.
What about the DRAM refresh? 4116 have a 7 bit refresh address, whereas
the 4164 need 8 bit addresses.
Christian
Regards,
Holm
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