Path: utzoo!attcan!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!fluke!strong
From: strong@tc.fluke.COM (Norm Strong)
Newsgroups: sci.electronics
Subject: Re: 1Hz signals
Message-ID: <5601@fluke.COM>
Date: 18 Oct 88 17:19:26 GMT
References: <2006@lll-lcc.llnl.gov> <931@ccnysci.UUCP> <2080@iscuva.ISCS.COM>
Sender: news@tc.fluke.COM
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 13

}In article <2006@lll-lcc.llnl.gov> rzh@lll-lcc.llnl.gov (Roger Hanscom) writes:
}>...I'm building a TTL digital counter, and I need a
}>1Hz pulse train to feed it.  I'd like to use the 60Hz signal on the
}>power transformer, and a MINIMUM of components to condition it and

This is your lucky day, Roger Hanscom.  The semiconductor industry has read
your mind and made an IC just for you!  It's called the 74LS57, and contains a
trigger, divide by 6, divide by 5 and divide by 2, all in one 8-pin package.

If you move to England, use the 74LS56, which divides by 50.
-- 

Norm   (strong@tc.fluke.com)