Need help, and I screwed up with my post - test-drb@ccmp.vtda.org

26 Nov 1999

There are other part numbers which should teach us to be specific.  There's
a Motorola MC4024, which is a dual VCO not unlike the 74S124.  The CD4024 is
a 7-bit counter.  There's a Motorola MC4044 which is a
phase-detector/amplifier intended for use with their MC4024 as parts of a
PLL.  OTOH there's the TI TMS 4044 4kx1 SRAM, and the CD 4044 which (?) is a
quad RS flipflop.  With NEC numbers, the uPD414 won't do much good if you
need a uPC414.

You can probably imagine how I learned some of these details.  The fact that
I still remember them may shed some light as well.

Dick

-----Original Message-----
From: Richard Erlacher &lt;edick(a)idcomm.com&gt;
To: Discussion re-collecting of classic computers
&lt;classiccmp(a)u.washington.edu&gt;
Date: Friday, November 26, 1999 2:55 PM
Subject: Re: Need help, and I screwed up with my post

...
 The use of the entire part number might avoid confusion
as well.  Intel has
never made a CD4040, have they?

Dick
-----Original Message-----
From: Dave McGuire &lt;mcguire(a)neurotica.com&gt;
To: Discussion re-collecting of classic computers
&lt;classiccmp(a)u.washington.edu&gt;
Date: Friday, November 26, 1999 2:28 PM
Subject: Re: Need help, and I screwed up with my post

>On Fri, 26 Nov 1999, Tony Duell wrote:
>>Yes, there are some numbers that were used for 2 or more totally
>>different chips. The other well-know confusing one is '4040' which is
>>either a CMOS 12 bit ripple counter (and is very common) or the second
>>Intel microprocessor (and is much rarer).
>
>  Ahh, but the 4040 microprocessor is a 24-pin DIP...making it difficult to
...
  confuse them
"in person"...

                -Dave McGuire 