<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
	<id>https://citylan.it/index.php?action=history&amp;feed=atom&amp;title=50240</id>
	<title>50240 - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://citylan.it/index.php?action=history&amp;feed=atom&amp;title=50240"/>
	<link rel="alternate" type="text/html" href="https://citylan.it/index.php?title=50240&amp;action=history"/>
	<updated>2026-04-19T09:36:49Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.43.6</generator>
	<entry>
		<id>https://citylan.it/index.php?title=50240&amp;diff=17181&amp;oldid=prev</id>
		<title>WikiSysop at 16:00, 9 September 2017</title>
		<link rel="alternate" type="text/html" href="https://citylan.it/index.php?title=50240&amp;diff=17181&amp;oldid=prev"/>
		<updated>2017-09-09T16:00:43Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:00, 9 September 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l70&quot;&gt;Line 70:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 70:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;DIP16-300mil (13 Notes)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;DIP16-300mil (13 Notes)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;          +---\/---+&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;          +---\/---+&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      Vss | 1    &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;19&lt;/del&gt;| C Low&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      Vss | 1    &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;16&lt;/ins&gt;| C Low&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      CLK | 2    15| C High&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      CLK | 2    15| C High&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      Vdd | 3    14| B&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      Vdd | 3    14| B&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>WikiSysop</name></author>
	</entry>
	<entry>
		<id>https://citylan.it/index.php?title=50240&amp;diff=15208&amp;oldid=prev</id>
		<title>WikiSysop at 15:01, 12 March 2017</title>
		<link rel="alternate" type="text/html" href="https://citylan.it/index.php?title=50240&amp;diff=15208&amp;oldid=prev"/>
		<updated>2017-03-12T15:01:25Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:01, 12 March 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l133&quot;&gt;Line 133:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 133:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;+-------------------------------------------------+&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;+-------------------------------------------------+&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/pre&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/pre&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Image:dip16-300mil.jpg]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Frequency=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Frequency=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>WikiSysop</name></author>
	</entry>
	<entry>
		<id>https://citylan.it/index.php?title=50240&amp;diff=15207&amp;oldid=prev</id>
		<title>WikiSysop: Created page with &quot;{| style=&quot;float: right;&quot; border=&quot;1&quot; cellpadding=&quot;4&quot; cellspacing=&quot;0&quot; class=&quot;sortable&quot; |+ style=&quot;background:silver&quot; | Cross-Reference !BRAND !TAG !NUMBER !NOTES !MARKINGS |- |AM...&quot;</title>
		<link rel="alternate" type="text/html" href="https://citylan.it/index.php?title=50240&amp;diff=15207&amp;oldid=prev"/>
		<updated>2017-03-12T15:00:29Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{| style=&amp;quot;float: right;&amp;quot; border=&amp;quot;1&amp;quot; cellpadding=&amp;quot;4&amp;quot; cellspacing=&amp;quot;0&amp;quot; class=&amp;quot;sortable&amp;quot; |+ style=&amp;quot;background:silver&amp;quot; | Cross-Reference !BRAND !TAG !NUMBER !NOTES !MARKINGS |- |AM...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{| style=&amp;quot;float: right;&amp;quot; border=&amp;quot;1&amp;quot; cellpadding=&amp;quot;4&amp;quot; cellspacing=&amp;quot;0&amp;quot; class=&amp;quot;sortable&amp;quot;&lt;br /&gt;
|+ style=&amp;quot;background:silver&amp;quot; | Cross-Reference&lt;br /&gt;
!BRAND&lt;br /&gt;
!TAG&lt;br /&gt;
!NUMBER&lt;br /&gt;
!NOTES&lt;br /&gt;
!MARKINGS&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 2555 || 13 || S2555&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 2556 || 13 || S2556&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 50240 || 13 || S50240&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 50241 || 13 || S50241&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 50242 || 12 || S50242&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 50243 || 13 || S50243&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 50244 || 13 || S50244&lt;br /&gt;
|-&lt;br /&gt;
|AMI || S || 50245 || 12 || S50245&lt;br /&gt;
|-&lt;br /&gt;
|General Instruments || AY || 1-0212 || 12 || AY-1-0212&lt;br /&gt;
|-&lt;br /&gt;
|General Instruments || AY || 3-0214 || 12 || AY-3-0214&lt;br /&gt;
|-&lt;br /&gt;
|ITT || SAA || 1030 || 13 || SAA1030&lt;br /&gt;
|-&lt;br /&gt;
|Mostek || MK || 50240 || 13 || MK50240&lt;br /&gt;
|-&lt;br /&gt;
|Mostek || MK || 50241 || 13 || MK50241&lt;br /&gt;
|-&lt;br /&gt;
|Mostek || MK || 50242 || 12 || MK50242&lt;br /&gt;
|-&lt;br /&gt;
|National || MM || 5555 || 13 || MM5555&lt;br /&gt;
|-&lt;br /&gt;
|National || MM || 5556 || 13 || MM5556&lt;br /&gt;
|-&lt;br /&gt;
|National || MM || 5832 || 13 || MM5832&lt;br /&gt;
|-&lt;br /&gt;
|National || MM || 5833 || 13 || MM5833&lt;br /&gt;
|-&lt;br /&gt;
|National || MM || 5891 || 13 || MM5891AA MM5891AB&lt;br /&gt;
|-&lt;br /&gt;
|Sanyo || M LM || 8071 || 13 || M8071 LM8071&lt;br /&gt;
|-&lt;br /&gt;
|Sescosem || SFF || 5009 || 12 || SSF5009&lt;br /&gt;
|-&lt;br /&gt;
|Sescosem || SFF || 5010 || 12 || SSF5010&lt;br /&gt;
|-&lt;br /&gt;
|Sescosem || SFF || 5011 || 13 || SSF5011&lt;br /&gt;
|-&lt;br /&gt;
|ST || M || 082B1 || 13 || M082B1 M082AB1&lt;br /&gt;
|-&lt;br /&gt;
|ST || M || 083B1 || 13 || M083B1 M083AB1&lt;br /&gt;
|-&lt;br /&gt;
|ST || M || 086B1 || 12 || M086B1 M086AB1&lt;br /&gt;
|-&lt;br /&gt;
|ST || M || 087B1 || 12 || M087B1&lt;br /&gt;
|-&lt;br /&gt;
|Texas Instruments || TMS || 3616 || 12 || TMS3616 TMS36161&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Top Octave Generator&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
=Pinout=&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
DIP16-300mil (13 Notes)&lt;br /&gt;
         +---\/---+&lt;br /&gt;
     Vss | 1    19| C Low&lt;br /&gt;
     CLK | 2    15| C High&lt;br /&gt;
     Vdd | 3    14| B&lt;br /&gt;
      C# | 4    13| A#&lt;br /&gt;
       D | 5    12| A&lt;br /&gt;
      D# | 6    11| G#&lt;br /&gt;
       E | 7    10| G&lt;br /&gt;
       F | 8     9| F#&lt;br /&gt;
         +--------+&lt;br /&gt;
&lt;br /&gt;
Frequency Output Table&lt;br /&gt;
+-------------------------------------------------+&lt;br /&gt;
| PIN  |  Note  | Div.  |    Frequency Output     |&lt;br /&gt;
|      |        |       |    Master Clock (KHz)   |&lt;br /&gt;
|      |        |       |   999,680  |  1999,360  |&lt;br /&gt;
|  16  | C Low  |  478  | 2091,38 Hz | 4182,76 Hz |&lt;br /&gt;
|   4  |   C#   |  451  | 2216,56 Hz | 4433,17 Hz |&lt;br /&gt;
|   5  |   D    |  426  | 2346,67 Hz | 4693,33 Hz |&lt;br /&gt;
|   6  |   D#   |  402  | 2486,76 Hz | 4973,53 Hz |&lt;br /&gt;
|   7  |   E    |  379  | 2637,68 Hz | 5275,36 Hz |&lt;br /&gt;
|   8  |   F    |  358  | 2792,40 Hz | 5584,80 Hz |&lt;br /&gt;
|   9  |   F#   |  338  | 2957,63 Hz | 5915,27 Hz |&lt;br /&gt;
|  10  |   G    |  319  | 3133,80 Hz | 6267,59 Hz |&lt;br /&gt;
|  11  |   G#   |  301  | 3321,20 Hz | 6642,39 Hz |&lt;br /&gt;
|  12  |   A    |  284  | 3520,00 Hz | 7040,00 Hz |&lt;br /&gt;
|  13  |   A#   |  268  | 3730,15 Hz | 7460,30 Hz |&lt;br /&gt;
|  14  |   B    |  253  | 3951,30 Hz | 7902,61 Hz |&lt;br /&gt;
|  15  | C High |  239  | 4182,76 Hz | 8365,52 Hz |&lt;br /&gt;
+-------------------------------------------------+&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
DIP16-300mil (12 Notes)&lt;br /&gt;
         +---\/---+&lt;br /&gt;
     Vss | 1    16| D&lt;br /&gt;
     CLK | 2    15| D#&lt;br /&gt;
      C# | 3    14| F&lt;br /&gt;
       E | 4    13| F#&lt;br /&gt;
       G | 5    12| A&lt;br /&gt;
      G# | 6    11| A#&lt;br /&gt;
       B | 7    10| Vdd&lt;br /&gt;
  C High | 8     9| NC&lt;br /&gt;
         +--------+&lt;br /&gt;
&lt;br /&gt;
Frequency Output Table&lt;br /&gt;
+-------------------------------------------------+&lt;br /&gt;
| PIN  |  Note  | Div.  |    Frequency Output     |&lt;br /&gt;
|      |        |       |    Master Clock (KHz)   |&lt;br /&gt;
|      |        |       |   999,680  |  1999,360  |&lt;br /&gt;
|   3  |   C#   |  451  | 2216,56 Hz | 4433,17 Hz |&lt;br /&gt;
|  16  |   D    |  426  | 2346,67 Hz | 4693,33 Hz |&lt;br /&gt;
|  15  |   D#   |  402  | 2486,76 Hz | 4973,53 Hz |&lt;br /&gt;
|   4  |   E    |  379  | 2637,68 Hz | 5275,36 Hz |&lt;br /&gt;
|  14  |   F    |  358  | 2792,40 Hz | 5584,80 Hz |&lt;br /&gt;
|  13  |   F#   |  338  | 2957,63 Hz | 5915,27 Hz |&lt;br /&gt;
|   5  |   G    |  319  | 3133,80 Hz | 6267,59 Hz |&lt;br /&gt;
|   6  |   G#   |  301  | 3321,20 Hz | 6642,39 Hz |&lt;br /&gt;
|  12  |   A    |  284  | 3520,00 Hz | 7040,00 Hz |&lt;br /&gt;
|  11  |   A#   |  268  | 3730,15 Hz | 7460,30 Hz |&lt;br /&gt;
|   7  |   B    |  253  | 3951,30 Hz | 7902,61 Hz |&lt;br /&gt;
|   8  | C High |  239  | 4182,76 Hz | 8365,52 Hz |&lt;br /&gt;
+-------------------------------------------------+&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
[[Image:dip16-300mil.jpg]]&lt;br /&gt;
&lt;br /&gt;
=Frequency=&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;DIP64&amp;#039;&amp;#039;&amp;#039;&amp;lt;br&amp;gt;&lt;br /&gt;
Set reader to FREQ, put black probe to GND, red probe to 2 to measure CPU clock&lt;br /&gt;
&lt;br /&gt;
=Files=&lt;br /&gt;
&amp;lt;gallery widths=&amp;quot;150px&amp;quot;&amp;gt;&lt;br /&gt;
File:50240.pdf|MK50240 MK50241 MK50242 Datasheet&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Sound Chips]]&lt;br /&gt;
[[Category:DIP16-300mil]]&lt;/div&gt;</summary>
		<author><name>WikiSysop</name></author>
	</entry>
</feed>