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Re: LF: Re: 74LS196N 74S196N Difference ?? L or LS

To: <[email protected]>
Subject: Re: LF: Re: 74LS196N 74S196N Difference ?? L or LS
From: "Graham" <[email protected]>
Date: Fri, 3 May 2013 00:43:53 +0100
Importance: Normal
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Tnx Allan
 
Yes that  makes sense  ,  the  chip that's  decided  to   double the  frequency to the  phase comparator   from   500  Hz    sq  wave to   1 Khz   1:5  pulse train  ...... thereby    ending  the   gb4fpr   472.5  session  .......   is  a  74LS196N 
 
I have  have  a few   74S196N   in the   spares box , should  be ok  as  replacement ?
 
73 -G.

From: Alan Melia
Sent: Thursday, May 02, 2013 11:13 PM
Subject: LF: Re: 74LS196N 74S196N Difference ?? L or LS

The S is fast schottky logic and will pull more current per chip than LS or TTL and will probably be slightly faster (I think without getting the spec sheets out)  LS draws less current than standard TTL but is as fast or in some cases slightly faster. The functionality is of cource exactly the same. LS will probably replace any standard TTL logic though it depends on the quality of the design to be sure that you dont get timing or race problems.
 
Alan
G3NYK 
----- Original Message -----
From: Graham
Sent: Thursday, May 02, 2013 10:45 PM
Subject: LF: 74LS196N 74S196N Difference ?? L or LS

74LS196N    74S196N  Difference  ?? L or  LS     divider   chip
 
What is the  difference  anyone  ??
 
 
 
Tnx -G.
 
  
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