Clock Chips
Eric Smith
esmith at apple.com
Sat Jul 21 11:55:04 AEST 1990
In article <7778 at pbhyf.PacBell.COM> gtb at PacBell.COM (Gary T. Butler)
writes:
> I am looking for a supplier of the clock chip that is used in the 6300+.
> This chip may me a proprietary chip made for AT&T only but the number is:
>
> MM58274N
> +8532 is on the top of the chip
>
> I have been told a replacement chip is 47174C made by National
Semiconductor.
>
> No one has been able to give me a clear answer. So if anyone knows where
> to get this chip or a replacement chip and supplier I would be very
> gratefull.
The chip is made by National Semiconductor. The correct part number is
MM58274N. 8532 is the date code and is unimportant. As far as I can tell,
47174C is not a valid National Semi part number. Where did you get it?
I don't think there are any second sources for this part.
Anyhow, you can probably get the 58274 from Fry's Electronics or a National
Semi distributor, although the latter might have a $100 minimum order.
The 58321 that Thad mentioned and the 5832 that it is based on were
designed
by OKI and are completely different.
----
Eric Smith esmith at apple.com
Opinions expressed herein are not necessarily those of my
employer, family, friends, computer, or even me! :-)
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