Archive of the former Yahoo!Groups mailing list: Yamaha CS80

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: Replacing all CMOS 4000 Series Logic IC's

From: "mborish_2000" <mborish_2000@...>
Date: 2009-01-20

It might. Some of the older chips took forever to switch. I haven't
seen a datasheet for the original 4000 series Toshiba IC's. I'm going
to do that next. The new 4000 series chips have much lower internal
resistances.

--- In yamahacs80@yahoogroups.com, "Quazimodo" <noddyspuncture@...> wrote:
>
> Mike I just Googled and read up on it (a bit..)
>
> Should you really worry... it looks like it would be in the
> ∗nanosecond∗ region anyway.... or am I wrong..?
>
> Cheers,
> TOM
>
>
>
> --- In yamahacs80@yahoogroups.com, "mborish_2000" <mborish_2000@>
> wrote:
> >
> > Thanks for your help everybody. Eventually, I am going to do a
> > continuity check. Right now I am worried about propagation delay.
> > I'm not going to run into any propagation delay issues if I keep most
> > of the CMOS in there am I?
> >
> > -Mike
> >
>