Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0F42E380000A0; Thu, 2 May 2013 20:15:33 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UY3Ae-0006Tc-VK for rs_out_1@blacksheep.org; Fri, 03 May 2013 00:44:16 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UY3Ae-0006TT-Be for rsgb_lf_group@blacksheep.org; Fri, 03 May 2013 00:44:16 +0100 Received: from smtpout1.wanadoo.co.uk ([80.12.242.29] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UY3Ac-0001dA-M5 for rsgb_lf_group@blacksheep.org; Fri, 03 May 2013 00:44:15 +0100 Received: from AGB ([2.26.16.87]) by mwinf5d10 with ME id XBjt1l0021siNWS03BjtZZ; Fri, 03 May 2013 01:43:53 +0200 Message-ID: From: "Graham" To: References: <07C35397E99A4E36ACAD6EECB24B07D3@gnat> In-Reply-To: <07C35397E99A4E36ACAD6EECB24B07D3@gnat> Date: Fri, 3 May 2013 00:43:53 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: 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 [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [80.12.242.29 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 29f208b223fe7a2cb359508e38e2ea2d Subject: Re: LF: Re: 74LS196N 74S196N Difference ?? L or LS Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D5_01CE4797.4914D960" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50,HTML_MESSAGE, MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d4084518301a4468d X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_00D5_01CE4797.4914D960 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 =20 I have have a few 74S196N in the spares box , should be ok as = replacement ? 73 -G. From: Alan Melia=20 Sent: Thursday, May 02, 2013 11:13 PM To: rsgb_lf_group@blacksheep.org=20 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=20 ----- Original Message -----=20 From: Graham=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, May 02, 2013 10:45 PM Subject: LF: 74LS196N 74S196N Difference ?? L or LS 74LS196N 74S196N Difference ?? L or LS divider chip=20 What is the difference anyone ?? Tnx -G. ------=_NextPart_000_00D5_01CE4797.4914D960 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Tnx Allan
 
Yes that  makes sense  ,  the  chip = that's =20 decided  to   double the  frequency to the  = phase=20 comparator   from   500  Hz    = sq  wave=20 to   1 Khz   1:5  pulse train  ......=20 thereby    ending  the   = gb4fpr  =20 472.5  session  .......   is  a  = 74LS196N =20
 
I have  have  a few  =20 74S196N   in = the   spares box ,=20 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=20 LS

The S is fast schottky logic and will = pull more=20 current per chip than LS or TTL and will probably be slightly = faster (I=20 think without getting the spec sheets out)  LS draws less current = than=20 standard TTL but is as fast or in some cases slightly faster. The = functionality=20 is of cource exactly the same. LS will probably replace any standard TTL = logic=20 though it depends on the quality of the design to be sure that you dont = get=20 timing or race problems.
 
Alan
G3NYK 
----- Original Message -----
From:=20 Graham
Sent: Thursday, May 02, 2013 = 10:45=20 PM
Subject: LF: 74LS196N 74S196N = Difference=20 ?? L or LS

74LS196N    74S196N  Difference  ?? L = or =20 LS     divider   chip
 
What is the  difference  anyone  ??
 
 
 
Tnx -G.
 
  
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