[time-nuts] Subs for obsolete chips in pictic

Stanley timenuts at n4iqt.com
Thu Dec 29 14:23:25 EST 2011


If you don't get enough interest I can send you a few.
Stanley

----- Original Message ----- 
From: "Eric Garner" <garnere at gmail.com>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Thursday, December 29, 2011 12:00 PM
Subject: Re: [time-nuts] Subs for obsolete chips in pictic


>I located a supply of 74AC175PC for $2 USD at qty 100. I still need 2 of
> them to finish off all of my PICTIC II's (I have 3 completed). Are there
> still some available from people willing to part with some? or is there
> enough interest in  that I could distribute enough of them to list members
> at cost to make an order worth while?
>
> -Eric
>
> On Mon, Dec 19, 2011 at 10:37 AM, Attila Kinali <attila at kinali.ch> wrote:
>
>> On Mon, 12 Dec 2011 09:42:14 -0800
>> Chris Albertson <albertson.chris at gmail.com> wrote:
>>
>> > Thanks.   The  findchips.com suggestion was good.  Seems the "74AC"
>> > part really is not available but there is a "CD74ACxxx" part that
>> > looks good.
>>
>> The CD at the front just means it's from TI instead someone else.
>> The parts are the same.
>>
>> > The problem is, the PCB is already made so it is hard to adapt the
>> > design to other parts.   If I were designing from scratch I'd only
>> > select parts that were stocked in high volume by most distributers
>>
>> Not really. Using SMD parts instead of DIL is easy to do. They have
>> the same pinout, just half the size. So a little bit of glue, a few
>> wires and a steady hand are all that is needed to fit one of those in.
>> Alternatively, there are break out boards from SOP/SSOP/SOIC to DIL
>> (but they cost more than it's worth)
>>
>>                                Attila Kinali
>>
>> --
>> Why does it take years to find the answers to
>> the questions one should have asked long ago?
>>
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>
>
>
> -- 
> --Eric
> _________________________________________
> Eric Garner
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