ds18b20.rar

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单总线DS18B20多器件单引脚搜索程序
ds18b20.rar
  • ds18b20
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  • ds18b20-1.c.091118153116
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  • ds18b20-1._c
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  • delay.h.061113162720
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  • ds18b20.c.091118165606
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  • ds18b20._h
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  • ds18b20-1.h.091118154124
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  • ds18b20-1._h
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  • delay._h
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  • ds18b20.c.091110184414
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  • ds18b20.c.091112222020
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  • ds18b20.h.091112121442
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  • ds18b20-1.h.091118154054
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内容介绍
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/622bab9515da9b288b5a1321/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622bab9515da9b288b5a1321/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">1 of 20<span class="_ _0"> </span>050102</div><div class="t m0 x2 h3 y2 ff2 fs1 fc0 sc0 ls1 ws1">FEATURES</div><div class="t m0 x2 h4 y3 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls3 ws2">Unique 1-Wire</span></span></div><div class="t m0 x3 h5 y4 ff1 fs3 fc0 sc0 ls2 ws1">&#174;</div><div class="t m0 x4 h6 y3 ff4 fs4 fc0 sc0 ls2 ws1"> <span class="_ _2"> </span><span class="ff1 fs2 ls4 ws3">interface r<span class="_ _3"></span>equires only one</span></div><div class="t m0 x5 h7 y5 ff1 fs2 fc0 sc0 ls5 ws4">port pin for communication</div><div class="t m0 x2 h4 y6 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls6 ws5">Each device has a <span class="_ _4"></span>unique 64-bit serial code</span></span></div><div class="t m0 x5 h7 y7 ff1 fs2 fc0 sc0 ls7 ws6">stored in an onboard ROM</div><div class="t m0 x2 h4 y8 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls8 ws7">Multidrop ca<span class="_ _4"></span>pability simplifie<span class="_ _4"></span>s distributed</span></span></div><div class="t m0 x5 h7 y9 ff1 fs2 fc0 sc0 ls8 ws8">temperature<span class="_ _4"></span> sensing applica<span class="_ _4"></span>tions</div><div class="t m0 x2 h4 ya ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls4 ws9">Requires no external components</span></span></div><div class="t m0 x2 h4 yb ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls9 wsa">Can be powered from data line. Power supply</span></span></div><div class="t m0 x5 h7 yc ff1 fs2 fc0 sc0 ls6 wsb">range is 3.0V to 5.5V</div><div class="t m0 x2 h4 yd ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 lsa wsc">Measures temperatures from <span class="_ _3"></span>&#8211;55&#176;C to</span></span></div><div class="t m0 x5 h7 ye ff1 fs2 fc0 sc0 lsb wsd">+125&#176;C (&#8211;67&#176;F to +257&#176;F)</div><div class="t m0 x2 h4 yf ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff5">&#177;<span class="ff1">0.5</span>&#176;<span class="ff1 lsc wse">C accurac<span class="_ _3"></span>y from &#8211;10&#176;C to +85&#176;C</span></span></span></div><div class="t m0 x2 h4 y10 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 lsd wsf">Thermometer<span class="_ _4"></span> resolution is user-<span class="_ _4"></span>selectable</span></span></div><div class="t m0 x5 h7 y11 ff1 fs2 fc0 sc0 lse ws10">from 9 to 12 bits</div><div class="t m0 x2 h4 y12 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 lsb ws11">Converts temperature to 12-bit digital word <span class="_ _3"></span>in</span></span></div><div class="t m0 x5 h7 y13 ff1 fs2 fc0 sc0 lsa ws12">750ms (max.)</div><div class="t m0 x2 h4 y14 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 lsf ws13">User-definable nonvolatile (NV) <span class="_ _3"></span>alarm</span></span></div><div class="t m0 x5 h7 y15 ff1 fs2 fc0 sc0 ls10 ws1">settings</div><div class="t m0 x2 h4 y16 ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls11 ws14">Alarm search comm<span class="_ _3"></span>and identifies <span class="_ _3"></span>and</span></span></div><div class="t m0 x5 h7 y17 ff1 fs2 fc0 sc0 ls11 ws15">addresses devices whos<span class="_ _3"></span>e temper<span class="_ _3"></span>ature is</div><div class="t m0 x5 h7 y18 ff1 fs2 fc0 sc0 ls10 ws16">outside of progr<span class="_ _4"></span>ammed limits (temperature</div><div class="t m0 x5 h7 y19 ff1 fs2 fc0 sc0 lsb wsd">alarm condition)</div><div class="t m0 x2 h4 y1a ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls12 ws17">Available in 8-pin SO (150mil), 8-pin </span><span class="ff5">m<span class="ff1 ls13">SOP<span class="_ _4"></span>,</span></span></span></div><div class="t m0 x5 h7 y1b ff1 fs2 fc0 sc0 ls14 ws18">and 3-pin TO-92 packages</div><div class="t m0 x2 h4 y1c ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 lsc wse">Software compatible with the DS1822</span></span></div><div class="t m0 x2 h4 y1d ff3 fs2 fc0 sc0 ls2 ws1">&#167;<span class="ff4"> <span class="_ _1"> </span><span class="ff1 ls15 ws19">Applications inc<span class="_ _4"></span>lude thermostatic c<span class="_ _4"></span>ontrols,</span></span></div><div class="t m0 x5 h7 y1e ff1 fs2 fc0 sc0 ls2 ws1a">industrial systems, consumer products,</div><div class="t m0 x5 h7 y1f ff1 fs2 fc0 sc0 ls8 ws1b">thermometer<span class="_ _4"></span>s, or any therma<span class="_ _4"></span>ll<span class="_ _3"></span>y se<span class="_ _4"></span>nsitive</div><div class="t m0 x5 h7 y20 ff1 fs2 fc0 sc0 ls16 ws1">sy<span class="_ _4"></span>st<span class="_ _4"></span>em</div><div class="t m0 x6 h3 y2 ff2 fs1 fc0 sc0 ls17 ws1c">PIN A<span class="_ _4"></span>SSIGN<span class="_ _4"></span>M<span class="_ _3"></span>ENT</div><div class="t m0 x6 h3 y21 ff2 fs1 fc0 sc0 ls18 ws1d">PIN DESCRIPTION<span class="_"> </span> </div><div class="t m0 x6 h7 y22 ff1 fs2 fc0 sc0 ls19 ws1e">GND<span class="_ _5"> </span>- Ground</div><div class="t m0 x6 h7 y23 ff1 fs2 fc0 sc0 ls19 ws1e">DQ<span class="_ _6"> </span>- Data In/Out</div><div class="t m0 x6 h7 y24 ff1 fs2 fc0 sc0 ls2 ws1">V</div><div class="t m0 x7 h5 y25 ff1 fs3 fc0 sc0 ls1a ws1">DD</div><div class="t m0 x8 h7 y24 ff1 fs2 fc0 sc0 lsc wse">- Power Supply Voltage</div><div class="t m0 x6 h7 y26 ff1 fs2 fc0 sc0 ls1b ws1f">NC<span class="_ _7"> </span>- No Connect</div><div class="t m0 x2 h3 y27 ff2 fs1 fc0 sc0 ls1c ws1">DESCRIPTION</div><div class="t m0 x2 h7 y28 ff1 fs2 fc0 sc0 lsc ws20">The DS18B20 Digital Thermometer provides 9 to 12&#8211;b<span class="ls4 ws21">it centigrade temperature measu<span class="_ _3"></span>rements and has</span></div><div class="t m0 x2 h7 y29 ff1 fs2 fc0 sc0 lsb ws22">an alarm function with nonvolatile <span class="ls1d ws23">user-programmable upp<span class="_ _3"></span>er and lower trigger <span class="_ _3"></span>points. <span class="_ _3"></span>The DS18B20</span></div><div class="t m0 x2 h7 y2a ff1 fs2 fc0 sc0 ls14 ws24">communicates over a 1-Wire bus th<span class="_ _3"></span><span class="ls6 ws25">at by definition requires only one data line (and ground) for</span></div><div class="t m0 x2 h7 y2b ff1 fs2 fc0 sc0 ls7 ws26">communication with a central microprocessor. It ha<span class="ls6">s an oper<span class="_ _3"></span>ating temperature ran<span class="_ _3"></span>ge of &#8211;55&#176;C to <span class="_ _3"></span>+125&#176;C</span></div><div class="t m0 x2 h7 y2c ff1 fs2 fc0 sc0 ls1e ws27">and is accurat<span class="_ _3"></span>e to <span class="ff5 ls2 ws1">&#177;<span class="ff1">0.5</span>&#176;</span><span class="ls7 ws28">C over the ran<span class="_ _3"></span>ge of &#8211;10&#176;C to +85&#176;C. In<span class="lsb ws29"> addition, the DS18B<span class="ls5">20 can derive power</span></span></span></div><div class="t m0 x2 h7 y2d ff1 fs2 fc0 sc0 lsf ws2a">directly from the data line (&#8220;p<span class="_ _3"></span>arasite power&#8221;), e<span class="ls9 ws2b">liminating the need <span class="_ _3"></span>for an ex<span class="_ _3"></span>ternal power suppl<span class="_ _3"></span>y.</span></div><div class="t m0 x2 h7 y2e ff1 fs2 fc0 sc0 ls1f ws2c">Each DS18B<span class="_ _4"></span>20 has a <span class="_ _4"></span>unique 64-bit <span class="_ _4"></span>serial code, which a<span class="_ _4"></span>llows multiple DS18B20s to function on the<span class="_ _4"></span> same</div><div class="t m0 x2 h7 y2f ff1 fs2 fc0 sc0 ls15 ws2d">1&#8211;wire bus; thus, it is simple to use one microproce<span class="_ _4"></span><span class="ls5 ws2e">ssor to control man<span class="_ _3"></span>y DS18B20s distributed over a</span></div><div class="t m0 x2 h7 y30 ff1 fs2 fc0 sc0 ls6 ws25">large area. Applications that can b<span class="_ _3"></span>enefit from th<span class="ls1d ws2f">is feature include HVAC <span class="_ _3"></span>environmental <span class="_ _3"></span>controls,</span></div><div class="t m0 x2 h7 y31 ff1 fs2 fc0 sc0 ls20 ws30">temperature<span class="_ _4"></span> monitoring sy<span class="_ _4"></span>stems inside buildings, e<span class="ls7 ws31">quipment or machinery, and <span class="_ _3"></span>process <span class="_ _3"></span>monitoring and</span></div><div class="t m0 x2 h7 y32 ff1 fs2 fc0 sc0 ls21 ws32">control systems.</div><div class="t m0 x9 h8 y33 ff2 fs4 fc0 sc0 ls22 ws1">DS18B20</div><div class="t m0 xa h3 y34 ff2 fs1 fc0 sc0 ls23 ws33">Programmabl<span class="_ _3"></span>e Resolution</div><div class="t m0 xb h3 y35 ff2 fs1 fc0 sc0 ls24 ws34">1-Wire Dig<span class="_ _4"></span>ital Thermometer</div><div class="c xc y36 w2 h9"><div class="t m0 x0 ha y37 ff2 fs2 fc1 sc0 ls25 ws1">www.</div></div><div class="c xd y36 w3 h9"><div class="t m0 x0 ha y37 ff2 fs2 fc1 sc0 ls26 ws1">maxim</div></div><div class="t m0 xe ha y38 ff2 fs2 fc1 sc0 ls2 ws1">-</div><div class="c xd y36 w3 h9"><div class="t m0 x2 ha y37 ff2 fs2 fc1 sc0 ls25 ws1">ic</div></div><div class="c xf y36 w4 h9"><div class="t m0 x0 ha y37 ff2 fs2 fc1 sc0 ls27 ws1">.com</div></div><div class="t m0 x10 h7 y39 ff1 fs2 fc0 sc0 lsd ws35">8-Pin 150mil SO</div><div class="t m0 x11 h7 y3a ff1 fs2 fc0 sc0 ls5 ws1">(DS18B20Z)</div><div class="t m0 x12 h7 y3b ff1 fs2 fc0 sc0 ls28 ws1">TO-92</div><div class="c x13 y3c w5 hb"><div class="t m0 x0 h7 y3d ff1 fs2 fc0 sc0 ls2 ws1">(</div></div><div class="t m0 x14 h7 y3e ff1 fs2 fc0 sc0 ls21 ws1">DS18B20</div><div class="c xb y3c w5 hb"><div class="t m0 x0 h7 y3d ff1 fs2 fc0 sc0 ls2 ws1">)</div></div><div class="t m0 x12 hc y3f ff4 fs5 fc1 sc0 ls2 ws1">1</div><div class="c x15 y40 w6 hd"><div class="t m0 x0 h5 y41 ff1 fs3 fc0 sc0 ls2 ws1">(</div></div><div class="t m0 x16 h5 y42 ff1 fs3 fc0 sc0 ls29 ws36">BOTTO<span class="_ _3"></span>M V<span class="_ _3"></span>IEW</div><div class="c x15 y40 w6 hd"><div class="t m0 x17 h5 y41 ff1 fs3 fc0 sc0 ls2 ws1">)</div></div><div class="t m0 x8 hc y3f ff4 fs5 fc1 sc0 ls2a ws1">23</div><div class="t m0 x18 he y43 ff2 fs0 fc1 sc0 ls2b ws1">DA<span class="_ _4"></span>LLA<span class="_ _4"></span>S</div><div class="t m0 x18 he y44 ff2 fs0 fc1 sc0 ls2c ws1">18B20</div><div class="t m0 x19 hf y45 ff4 fs0 fc1 sc0 ls2 ws1">1</div><div class="t m1 x1a hf y46 ff4 fs0 fc0 sc0 ls2d ws1">GND</div><div class="t m1 x1b hf y47 ff4 fs0 fc0 sc0 ls2e ws1">DQ</div><div class="t m1 x1c hf y48 ff4 fs0 fc0 sc0 ls2 ws1">V</div><div class="t m1 x1d h10 y49 ff4 fs6 fc0 sc0 ls2f ws1">DD</div><div class="t m0 x1e hf y4a ff4 fs0 fc1 sc0 ls30 ws1">23</div><div class="t m0 x1f hf y4b ff4 fs0 fc0 sc0 ls2 ws1">N</div><div class="c x1f y4b w7 h11"><div class="t m0 x20 hf y4c ff4 fs0 fc0 sc0 ls2 ws1">C</div></div><div class="t m0 x21 hf y4d ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x21 hf y4e ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x22 hf y4f ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x22 hf y50 ff4 fs0 fc0 sc0 ls2d ws1">GND</div><div class="t m0 x23 hf y51 ff4 fs0 fc0 sc0 ls2e ws1">DQ</div><div class="t m0 x23 hf y52 ff4 fs0 fc0 sc0 ls2 ws1">V</div><div class="t m0 x24 h10 y53 ff4 fs6 fc0 sc0 ls2f ws1">DD</div><div class="t m0 x1f hf y54 ff4 fs0 fc0 sc0 ls2 ws1">N</div><div class="c x1f y54 w7 h11"><div class="t m0 x20 hf y4c ff4 fs0 fc0 sc0 ls2 ws1">C</div></div><div class="t m0 x25 h5 y55 ff1 fs3 fc1 sc0 ls2 ws1">6</div><div class="c x25 y56 w8 h12"><div class="t m0 x0 h5 y4c ff1 fs3 fc1 sc0 ls2 ws1">8</div></div><div class="t m0 x25 h5 y57 ff1 fs3 fc1 sc0 ls2 ws1">7</div><div class="c x25 y58 w8 h12"><div class="t m0 x0 h5 y4c ff1 fs3 fc1 sc0 ls2 ws1">5</div></div><div class="t m0 x26 h5 y55 ff1 fs3 fc1 sc0 ls2 ws1">3</div><div class="t m0 x26 h5 y59 ff1 fs3 fc1 sc0 ls2 ws1">1</div><div class="t m0 x26 h5 y5a ff1 fs3 fc1 sc0 ls2 ws1">2</div><div class="t m0 x26 h5 y5b ff1 fs3 fc1 sc0 ls2 ws1">4</div><div class="t m2 x9 ha y5c ff2 fs2 fc1 sc0 ls19 ws1">DALLAS</div><div class="t m2 x27 ha y5d ff2 fs2 fc1 sc0 ls31 ws1">18B20</div><div class="t m0 x28 hf y5e ff4 fs0 fc0 sc0 ls2 ws1">N</div><div class="c x28 y5f w7 h13"><div class="t m0 x20 hf y60 ff4 fs0 fc0 sc0 ls2 ws1">C</div></div><div class="t m0 x29 hf y61 ff4 fs0 fc0 sc0 ls2 ws1">V</div><div class="t m0 x2a h10 y62 ff4 fs6 fc0 sc0 ls2f ws1">DD</div><div class="t m0 x29 hf y63 ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x2b hf y64 ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x2b hf y65 ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x2c hf y66 ff4 fs0 fc0 sc0 ls2d ws1">GND</div><div class="t m0 x1f hf y67 ff4 fs0 fc0 sc0 ls2e ws1">NC</div><div class="t m0 x28 hf y68 ff4 fs0 fc0 sc0 ls2 ws1">D</div><div class="c x28 y69 w9 h11"><div class="t m0 x20 hf y4c ff4 fs0 fc0 sc0 ls2 ws1">Q</div></div><div class="t m0 x2d h5 y6a ff1 fs3 fc1 sc0 ls2 ws1">6</div><div class="c x2d y6b w8 h12"><div class="t m0 x0 h5 y4c ff1 fs3 fc1 sc0 ls2 ws1">8</div></div><div class="t m0 x2d h5 y6c ff1 fs3 fc1 sc0 ls2 ws1">7</div><div class="c x2d y6d w8 h12"><div class="t m0 x0 h5 y4c ff1 fs3 fc1 sc0 ls2 ws1">5</div></div><div class="t m0 x2e h5 y6e ff1 fs3 fc1 sc0 ls2 ws1">3</div><div class="t m0 x2e h5 y6f ff1 fs3 fc1 sc0 ls2 ws1">1</div><div class="t m0 x2e h5 y70 ff1 fs3 fc1 sc0 ls2 ws1">2</div><div class="t m0 x2e h5 y71 ff1 fs3 fc1 sc0 ls2 ws1">4</div><div class="t m2 x2f ha y69 ff2 fs2 fc1 sc0 ls31 ws1">18B20</div><div class="t m0 x30 h7 y72 ff1 fs2 fc0 sc0 ls32 ws1">8-Pin </div><div class="c x9 y73 wa h14"><div class="t m0 x0 h15 y74 ff5 fs2 fc0 sc0 ls2 ws1">m</div></div><div class="t m0 x31 h7 y72 ff1 fs2 fc0 sc0 ls31 ws1">SOP</div><div class="c x32 y75 w5 h16"><div class="t m0 x0 h7 y76 ff1 fs2 fc0 sc0 ls2 ws1">(</div></div><div class="t m0 x26 h7 y77 ff1 fs2 fc0 sc0 ls21 ws1">DS18B20U</div><div class="c x33 y75 w5 h16"><div class="t m0 x0 h7 y76 ff1 fs2 fc0 sc0 ls2 ws1">)</div></div><div class="t m0 x34 h17 y78 ff6 fs3 fc0 sc0 ls33 ws37">1-Wire is a registered t<span class="_ _3"></span>rademark of Dallas Semiconductor.</div><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div> </body> </html>
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