Re: Experience with a 6321 IC?

Great info. Has anyone used these on a Bally/Stern?

Toddy

"Frank-Rainer Grahl" <frgrahl@xxxxxxx> wrote in message
news:setenuytzkarg.ipd4710.pminews@xxxxxxxxxxxxxxxxxxxxx
> CMOS not NMOS. Second port isn't open collector and they do habe a lower
> current
> limit for all ports together. It's mentioned in the data ***. Do not use
> them
> with a WMS System 3 or 4 cpu. They seem to have some compatibility
> problems with
> theses boards. Solenoid ports are not initialized correctly. Problem goes
> away if
> you use a System 6 cpu and seem to work fine with all other WMS pcbs but I
> didn't
> try them long term. Do not own Bally games so can't tell if there work
> there.
>
> On Wed, 02 Nov 2005 16:52:16 GMT, Toddy wrote:
>
>>>I bought a group lot of stuff from from an old operator, in it a box of
>>>ICs.
>>>I recognize everything except for a tube of 6321 ICs. Not 6821s, SIXTY
>>>THREE. Specifcally HD6321P.
>>>
>>>I googled, can't find anything on RGP anyway. Did find someone on the
>>>electronics group that discusses it a bit wondering if anyone had tried
>>>it
>>>instead of a 6821. They state "The HD6321 is cmos, versus nmos of the
>>>6821.
>>>It's supposed to be compatible, but there might be some cases where it
>>>causes a problem."
>>>
>>>
>
>
>
>
>
> Regards
> Frank-Rainer Grahl
> (frgrahl@xxxxxxxxxxxxxxxxx)
>
>


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