https://gunkies.org/w/index.php?title=Talk:Latch&feed=atom&action=historyTalk:Latch - Revision history2024-03-29T00:27:38ZRevision history for this page on the wikiMediaWiki 1.30.0https://gunkies.org/w/index.php?title=Talk:Latch&diff=15829&oldid=prevJnc: /* Latches/Flops */ More changing types2018-03-15T09:00:27Z<p><span dir="auto"><span class="autocomment">Latches/Flops: </span> More changing types</span></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>:: Alas, in reading about various kinds of flip-flops in the TI TTL reference book, I discovered things are even more complex than I realized! See, e.g. the 7473 and 74LS73 - which have different clocking! So I've now added a section which attempts to give a general, systematic framework for understanding flops/latches: when they look at the inputs, etc.</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div>:: Alas, in reading about various kinds of flip-flops in the TI TTL reference book, I discovered things are even more complex than I realized! See, e.g. the 7473<ins class="diffchange diffchange-inline">/6/8 </ins>and 74LS73<ins class="diffchange diffchange-inline">/6/8 </ins>- which have different clocking! So I've now added a section which attempts to give a general, systematic framework for understanding flops/latches: when they look at the inputs, etc.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:: I ''hope'' I've made things better; the text may be more complex now, but alas the reality is complex, and I ''think'' I have captured things in a way which makes the complexity easier to grasp. But I'd be interested in feedback! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 09:52, 15 March 2018 (CET)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:: I ''hope'' I've made things better; the text may be more complex now, but alas the reality is complex, and I ''think'' I have captured things in a way which makes the complexity easier to grasp. But I'd be interested in feedback! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 09:52, 15 March 2018 (CET)</div></td></tr>
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</table>Jnchttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15821&oldid=prevJnc: Alas, I may have just broken it! :-)2018-03-15T08:52:53Z<p>Alas, I may have just broken it! :-)</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>: Looks pretty good now! [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:24, 15 March 2018 (CET)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>: Looks pretty good now! [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:24, 15 March 2018 (CET)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:: Alas, in reading about various kinds of flip-flops in the TI TTL reference book, I discovered things are even more complex than I realized! See, e.g. the 7473 and 74LS73 - which have different clocking! So I've now added a section which attempts to give a general, systematic framework for understanding flops/latches: when they look at the inputs, etc.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:: I ''hope'' I've made things better; the text may be more complex now, but alas the reality is complex, and I ''think'' I have captured things in a way which makes the complexity easier to grasp. But I'd be interested in feedback! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 09:52, 15 March 2018 (CET)</ins></div></td></tr>
</table>Jnchttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15812&oldid=prevTor: Looks fine2018-03-15T08:25:01Z<p>Looks fine</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::: Yup. In fact, I just recently had confusion talking to my partner on the QSIC project about state storage devices - as part of clearing it up, he introduced me to the 'transparent' terminology.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::: Yup. In fact, I just recently had confusion talking to my partner on the QSIC project about state storage devices - as part of clearing it up, he introduced me to the 'transparent' terminology.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::: But I had a bit of hard time compressing it all into short text. The issue was S-R device, which doesn't have a 'data' input, ''or'' a clock, and is not (strictly speaking) 'transparent'! It's too primitive! And the J-K flop, which doesn't have a data input, didn't help! Eventually I resorted to saying 'flops are now so-and-so, everything else is latches'! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 18:10, 13 March 2018 (CET)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::: But I had a bit of hard time compressing it all into short text. The issue was S-R device, which doesn't have a 'data' input, ''or'' a clock, and is not (strictly speaking) 'transparent'! It's too primitive! And the J-K flop, which doesn't have a data input, didn't help! Eventually I resorted to saying 'flops are now so-and-so, everything else is latches'! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 18:10, 13 March 2018 (CET)</div></td></tr>
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</table>Torhttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15805&oldid=prevJnc: Yes, still lots of confusion2018-03-13T17:11:09Z<p>Yes, still lots of confusion</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Separate articles would therefore have a lot of duplication</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Separate articles would therefore have a lot of duplication</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Historically (and this is a ''history'' wiki :-), the terms were not so carefully delineated; e.g. in Pfister's book (he's the guy who came up with the whole SR/D/JK/T nomenclature), he talks about "R-S flip-flops"</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Historically (and this is a ''history'' wiki :-), the terms were not so carefully delineated; e.g. in Pfister's book (he's the guy who came up with the whole SR/D/JK/T nomenclature), he talks about "R-S flip-flops"</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">: I will definitely try and make clearer (than it already is) that in ''contemporary'' terminology, the two terms refer to disjoint sets. See what you think... [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 14:15, 13 March 2018 (CET)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">: Also, the division into flops/latches is not necessarily recent. I looked at the TI TTL data-book, from 1976, and they make the latch/flop distinction there. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 18:10, 13 March 2018 (CET)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:: I talked to another friend, and he was vehement that they were the same thing.  So clearly it's unclear. :-) [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:: I talked to another friend, and he was vehement that they were the same thing.  So clearly it's unclear. :-) [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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;"><div>I <del class="diffchange diffchange-inline">will definitely try </del>and <del class="diffchange diffchange-inline">make clearer </del>(<del class="diffchange diffchange-inline">than it already is</del>) <del class="diffchange diffchange-inline">that in </del>''<del class="diffchange diffchange-inline">contemporary</del>'' <del class="diffchange diffchange-inline">terminology</del>, <del class="diffchange diffchange-inline">the two terms refer </del>to <del class="diffchange diffchange-inline">disjoint sets. See what you think... </del>[[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) <del class="diffchange diffchange-inline">14</del>:<del class="diffchange diffchange-inline">15</del>, 13 March 2018 (CET)</div></td><td class='diff-marker'>+</td><td style="color:black; 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;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">::: Yup. In fact, </ins>I <ins class="diffchange diffchange-inline">just recently had confusion talking to my partner on the QSIC project about state storage devices - as part of clearing it up, he introduced me to the 'transparent' terminology.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins class="diffchange diffchange-inline">::: But I had a bit of hard time compressing it all into short text. The issue was S-R device, which doesn't have a 'data' input, ''or'' a clock, </ins>and <ins class="diffchange diffchange-inline">is not </ins>(<ins class="diffchange diffchange-inline">strictly speaking</ins>) '<ins class="diffchange diffchange-inline">transparent</ins>'<ins class="diffchange diffchange-inline">! It</ins>'<ins class="diffchange diffchange-inline">s too primitive! And the J-K flop, which doesn</ins>'<ins class="diffchange diffchange-inline">t have a data input</ins>, <ins class="diffchange diffchange-inline">didn't help! Eventually I resorted </ins>to <ins class="diffchange diffchange-inline">saying 'flops are now so-and-so, everything else is latches'! </ins>[[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) <ins class="diffchange diffchange-inline">18</ins>:<ins class="diffchange diffchange-inline">10</ins>, 13 March 2018 (CET)</div></td></tr>
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</table>Jnchttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15802&oldid=prevLarsbrinkhoff: It's the same to some people!2018-03-13T13:26:24Z<p>It's the same to some people!</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Separate articles would therefore have a lot of duplication</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Separate articles would therefore have a lot of duplication</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Historically (and this is a ''history'' wiki :-), the terms were not so carefully delineated; e.g. in Pfister's book (he's the guy who came up with the whole SR/D/JK/T nomenclature), he talks about "R-S flip-flops"</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:* Historically (and this is a ''history'' wiki :-), the terms were not so carefully delineated; e.g. in Pfister's book (he's the guy who came up with the whole SR/D/JK/T nomenclature), he talks about "R-S flip-flops"</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:: I talked to another friend, and he was vehement that they were the same thing.  So clearly it's unclear. :-) [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I will definitely try and make clearer (than it already is) that in ''contemporary'' terminology, the two terms refer to disjoint sets. See what you think... [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 14:15, 13 March 2018 (CET)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I will definitely try and make clearer (than it already is) that in ''contemporary'' terminology, the two terms refer to disjoint sets. See what you think... [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 14:15, 13 March 2018 (CET)</div></td></tr>
</table>Larsbrinkhoffhttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15801&oldid=prevJnc: /* Latches/Flops */ Hmmmm2018-03-13T13:16:44Z<p><span dir="auto"><span class="autocomment">Latches/Flops: </span> Hmmmm</span></p>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">==Latches/Flops==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:Your friends are right. Wikipedia uses the confusing 'a flip-flop or latch is..', which is easy to interpret to mean that 'latch' is just another word for 'flip-flop', which is not what is meant. There is a distinction, although there's overlap (b/c there are different types of latches). And when I design something I think of latches and flip-flops as entirely different things (e.g. flip-flops to divide or fix clock signals, latches to buffer/hold data). (Here's a web page which talks about flip-flops vs latches): http://www.electronicsteacher.com/computer-architectures/digital-circuits/flip-flops.php [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:35, 12 March 2018 (CET)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:Your friends are right. Wikipedia uses the confusing 'a flip-flop or latch is..', which is easy to interpret to mean that 'latch' is just another word for 'flip-flop', which is not what is meant. There is a distinction, although there's overlap (b/c there are different types of latches). And when I design something I think of latches and flip-flops as entirely different things (e.g. flip-flops to divide or fix clock signals, latches to buffer/hold data). (Here's a web page which talks about flip-flops vs latches): http://www.electronicsteacher.com/computer-architectures/digital-circuits/flip-flops.php [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:35, 12 March 2018 (CET)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:: Thanks.  Then maybe the redirect from Latch to Flip-flop isn't entirely appropriate.  Although, it might be better than nothing. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:: Thanks.  Then maybe the redirect from Latch to Flip-flop isn't entirely appropriate.  Although, it might be better than nothing. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">: In current terminology, the two indeed refer to sets of things which do not overlap. However, after thinking about it (which I hadn't done before :-), I still think it might be appropriate to cover them in one article:</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:* They are both devices which use feedback to store information</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:* Separate articles would therefore have a lot of duplication</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:* Historically (and this is a ''history'' wiki :-), the terms were not so carefully delineated; e.g. in Pfister's book (he's the guy who came up with the whole SR/D/JK/T nomenclature), he talks about "R-S flip-flops"</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">I will definitely try and make clearer (than it already is) that in ''contemporary'' terminology, the two terms refer to disjoint sets. See what you think... [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 14:15, 13 March 2018 (CET)</ins></div></td></tr>
</table>Jnchttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15794&oldid=prevLarsbrinkhoff: Inappropriate redirect?2018-03-12T08:43:18Z<p>Inappropriate redirect?</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:Your friends are right. Wikipedia uses the confusing 'a flip-flop or latch is..', which is easy to interpret to mean that 'latch' is just another word for 'flip-flop', which is not what is meant. There is a distinction, although there's overlap (b/c there are different types of latches). And when I design something I think of latches and flip-flops as entirely different things (e.g. flip-flops to divide or fix clock signals, latches to buffer/hold data). (Here's a web page which talks about flip-flops vs latches): http://www.electronicsteacher.com/computer-architectures/digital-circuits/flip-flops.php [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:35, 12 March 2018 (CET)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:Your friends are right. Wikipedia uses the confusing 'a flip-flop or latch is..', which is easy to interpret to mean that 'latch' is just another word for 'flip-flop', which is not what is meant. There is a distinction, although there's overlap (b/c there are different types of latches). And when I design something I think of latches and flip-flops as entirely different things (e.g. flip-flops to divide or fix clock signals, latches to buffer/hold data). (Here's a web page which talks about flip-flops vs latches): http://www.electronicsteacher.com/computer-architectures/digital-circuits/flip-flops.php [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:35, 12 March 2018 (CET)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:: Thanks.  Then maybe the redirect from Latch to Flip-flop isn't entirely appropriate.  Although, it might be better than nothing. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</ins></div></td></tr>
</table>Larsbrinkhoffhttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15793&oldid=prevTor: flip-flops != latches (not all the time at least)2018-03-12T08:36:29Z<p>flip-flops != latches (not all the time at least)</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; 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;"><div><ins style="font-weight: bold; text-decoration: none;">:Your friends are right. Wikipedia uses the confusing 'a flip-flop or latch is..', which is easy to interpret to mean that 'latch' is just another word for 'flip-flop', which is not what is meant. There is a distinction, although there's overlap (b/c there are different types of latches). And when I design something I think of latches and flip-flops as entirely different things (e.g. flip-flops to divide or fix clock signals, latches to buffer/hold data). (Here's a web page which talks about flip-flops vs latches): http://www.electronicsteacher.com/computer-architectures/digital-circuits/flip-flops.php [[User:Tor|Tor]] ([[User talk:Tor|talk]]) 09:35, 12 March 2018 (CET)</ins></div></td></tr>
</table>Torhttps://gunkies.org/w/index.php?title=Talk:Latch&diff=15792&oldid=prevLarsbrinkhoff: Not same.2018-03-12T06:47:31Z<p>Not same.</p>
<p><b>New page</b></p><div>My digital design friends tell me there's a distinction between latches and flip-flops. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]])</div>Larsbrinkhoff