Nand Flash原理

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  • 2022-05-09 21:54
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本资料详细介绍了Nand Flash的工作原理,对于Nand Flash的嵌入式开发很有价值。
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<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/62798ee0517cd20ea4d5c39f/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/62798ee0517cd20ea4d5c39f/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">&#28145;&#20837;&#21078;&#26512;<span class="_ _0"> </span><span class="ff2 sc1">NAND &#58885;ash<span class="_ _0"> </span></span>&#24037;&#20316;&#21407;&#29702;&#65281;</div><div class="t m0 x2 h4 y3 ff3 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1">&#38378;&#23384;&#38453;&#21015;&#20998;&#20026;&#19968;&#31995;&#21015;<span class="_ _1"> </span></span>128kB<span class="_ _1"> </span><span class="ff1">&#30340;&#21306;&#22359;</span>(block)<span class="ff1">&#65292;&#36825;&#20123;&#21306;&#22359;&#26159;<span class="_ _1"> </span></span>NAND<span class="_ _1"> </span><span class="ff1">&#22120;&#20214;&#20013;&#26368;&#23567;&#30340;&#21487;&#25830;&#38500;&#23454;</span></div><div class="t m0 x2 h4 y4 ff1 fs1 fc1 sc1 ls0 ws0">&#20307;&#12290;&#25830;&#38500;&#19968;&#20010;&#21306;&#22359;&#23601;&#26159;&#25226;&#25152;&#26377;&#30340;&#20301;<span class="ff3">(bit)</span>&#35774;&#32622;&#20026;<span class="ff3">"1"(</span>&#32780;&#25152;&#26377;&#23383;&#33410;<span class="ff3">(byte)</span>&#35774;&#32622;&#20026;<span class="_ _1"> </span><span class="ff3">FFh)</span>&#12290;&#26377;&#24517;&#35201;&#36890;&#36807;</div><div class="t m0 x2 h4 y5 ff1 fs1 fc1 sc1 ls0 ws0">&#32534;&#31243;&#65292;&#23558;&#24050;&#25830;&#38500;&#30340;&#20301;&#20174;<span class="ff3">"1"</span>&#21464;&#20026;<span class="ff3">"0"</span>&#12290;&#26368;&#23567;&#30340;&#32534;&#31243;&#23454;&#20307;&#26159;&#23383;&#33410;<span class="ff3">(byte)</span>&#12290;&#19968;&#20123;<span class="_ _1"> </span><span class="ff3">NOR<span class="_ _1"> </span></span>&#38378;&#23384;&#33021;&#21516;&#26102;&#25191;</div><div class="t m0 x2 h4 y6 ff1 fs1 fc1 sc1 ls0 ws0">&#34892;&#35835;&#20889;&#25805;&#20316;<span class="ff3">(</span>&#35265;&#19979;&#22270;<span class="_ _1"> </span><span class="ff3">1)</span>&#12290;&#34429;&#28982;<span class="_ _1"> </span><span class="ff3">NAND<span class="_ _1"> </span></span>&#19981;&#33021;&#21516;&#26102;&#25191;&#34892;&#35835;&#20889;&#25805;&#20316;&#65292;&#23427;&#21487;&#20197;&#37319;&#29992;&#31216;&#20026;<span class="ff3">"</span>&#26144;&#23556;</div><div class="t m0 x2 h4 y7 ff3 fs1 fc1 sc1 ls0 ws0">(shadowing)"<span class="ff1">&#30340;&#26041;&#27861;&#65292;&#22312;&#31995;&#32479;&#32423;&#23454;&#29616;&#36825;&#19968;&#28857;&#12290;&#36825;&#31181;&#26041;&#27861;&#22312;&#20010;&#20154;&#30005;&#33041;&#19978;&#24050;&#32463;&#27839;&#29992;&#22810;&#24180;&#65292;&#21363;&#23558;</span></div><div class="t m0 x2 h4 y8 ff3 fs1 fc1 sc1 ls0 ws0">BIOS<span class="_ _1"> </span><span class="ff1">&#20174;&#36895;&#29575;&#36739;&#20302;&#30340;<span class="_ _1"> </span></span>ROM<span class="_ _1"> </span><span class="ff1">&#21152;&#36733;&#21040;&#36895;&#29575;&#36739;&#39640;&#30340;<span class="_ _1"> </span></span>RAM<span class="_ _1"> </span><span class="ff1">&#19978;&#12290; </span></div><div class="t m0 x2 h4 y9 ff3 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1">&#30340;&#25928;&#29575;&#36739;&#39640;&#65292;&#26159;&#22240;&#20026;<span class="_ _1"> </span></span>NAND<span class="_ _1"> </span><span class="ff1">&#20018;&#20013;&#27809;&#26377;&#37329;&#23646;&#35302;&#28857;&#12290;</span>NAND<span class="_ _1"> </span><span class="ff1">&#38378;&#23384;&#21333;&#20803;&#30340;&#22823;&#23567;&#27604;<span class="_ _1"> </span></span>NOR<span class="_ _1"> </span><span class="ff1">&#35201;&#23567;</span></div><div class="t m0 x2 h4 ya ff3 fs1 fc1 sc1 ls0 ws0">(4F2<span class="ff1">&#65306;</span>10F2)<span class="ff1">&#30340;&#21407;&#22240;&#65292;&#26159;<span class="_ _1"> </span></span>NOR<span class="_ _1"> </span><span class="ff1">&#30340;&#27599;&#19968;&#20010;&#21333;&#20803;&#37117;&#38656;&#35201;&#29420;&#31435;&#30340;&#37329;&#23646;&#35302;&#28857;&#12290;</span>NAND<span class="_ _1"> </span><span class="ff1">&#19982;&#30828;&#30424;&#39537;&#21160;&#22120;&#31867;</span></div><div class="t m0 x2 h4 yb ff1 fs1 fc1 sc1 ls0 ws0">&#20284;&#65292;&#22522;&#20110;&#25159;&#21306;<span class="ff3">(</span>&#39029;<span class="ff3">)</span>&#65292;&#36866;&#21512;&#20110;&#23384;&#20648;&#36830;&#32493;&#30340;&#25968;&#25454;&#65292;&#22914;&#22270;&#29255;&#12289;&#38899;&#39057;&#25110;&#20010;&#20154;&#30005;&#33041;&#25968;&#25454;&#12290;&#34429;&#28982;&#36890;&#36807;&#25226;&#25968;&#25454;</div><div class="t m0 x2 h4 yc ff1 fs1 fc1 sc1 ls0 ws0">&#26144;&#23556;&#21040;<span class="_ _1"> </span><span class="ff3">RAM<span class="_ _1"> </span></span>&#19978;&#65292;&#33021;&#22312;&#31995;&#32479;&#32423;&#23454;&#29616;&#38543;&#26426;&#23384;&#21462;&#65292;&#20294;&#26159;&#65292;&#36825;&#26679;&#20570;&#38656;&#35201;&#39069;&#22806;&#30340;<span class="_ _1"> </span><span class="ff3">RAM<span class="_ _1"> </span></span>&#23384;&#20648;&#31354;&#38388;&#12290;&#27492;&#22806;&#65292;</div><div class="t m0 x2 h4 yd ff1 fs1 fc1 sc1 ls0 ws0">&#36319;&#30828;&#30424;&#19968;&#26679;&#65292;<span class="ff3">NAND<span class="_ _1"> </span></span>&#22120;&#20214;&#23384;&#22312;&#22351;&#30340;&#25159;&#21306;&#65292;&#38656;&#35201;&#32416;&#38169;&#30721;<span class="ff3">(ECC)</span>&#26469;&#32500;&#25345;&#25968;&#25454;&#30340;&#23436;&#25972;&#24615;&#12290; </div><div class="t m0 x2 h4 ye ff1 fs1 fc1 sc1 ls0 ws0">&#23384;&#20648;&#21333;&#20803;&#38754;&#31215;&#36234;&#23567;&#65292;&#35064;&#29255;&#30340;&#38754;&#31215;&#20063;&#23601;&#36234;&#23567;&#12290;&#22312;&#36825;&#31181;&#24773;&#20917;&#19979;&#65292;<span class="ff3">NAND<span class="_ _1"> </span></span>&#23601;&#33021;&#22815;&#20026;&#24403;&#20170;&#30340;&#20302;&#25104;&#26412;&#28040;&#36153;</div><div class="t m0 x2 h4 yf ff1 fs1 fc1 sc1 ls0 ws0">&#24066;&#22330;&#25552;&#20379;&#23384;&#20648;&#23481;&#37327;&#26356;&#22823;&#30340;&#38378;&#23384;&#20135;&#21697;&#12290;<span class="ff3">NAND<span class="_ _1"> </span></span>&#38378;&#23384;&#29992;&#20110;&#20960;&#20046;&#25152;&#26377;&#21487;&#25830;&#38500;&#30340;&#23384;&#20648;&#21345;&#12290;<span class="ff3">NAND<span class="_ _1"> </span></span>&#30340;&#22797;&#29992;</div><div class="t m0 x2 h4 y10 ff1 fs1 fc1 sc1 ls0 ws0">&#25509;&#21475;&#20026;&#25152;&#26377;&#26368;&#26032;&#30340;&#22120;&#20214;&#21644;&#23494;&#24230;&#37117;&#25552;&#20379;&#20102;&#19968;&#31181;&#30456;&#20284;&#30340;&#24341;&#33050;&#36755;&#20986;&#12290;&#36825;&#31181;&#24341;&#33050;&#36755;&#20986;&#20351;&#24471;&#35774;&#35745;&#24037;&#31243;&#24072;&#26080;</div><div class="t m0 x2 h4 y11 ff1 fs1 fc1 sc1 ls0 ws0">&#39035;&#25913;&#21464;&#30005;&#36335;&#26495;&#30340;&#30828;&#20214;&#35774;&#35745;&#65292;&#23601;&#33021;&#20174;&#26356;&#23567;&#30340;&#23494;&#24230;&#31227;&#26893;&#21040;&#26356;&#22823;&#23494;&#24230;&#30340;&#35774;&#35745;&#19978;&#12290;</div><div class="t m0 x2 h4 y12 ff2 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1 sc2">&#19982;<span class="_ _1"> </span></span>NOR<span class="_ _1"> </span><span class="ff1 sc2">&#38378;&#23384;&#27604;&#36739;<span class="sc1"> </span></span></div><div class="t m0 x2 h4 y13 ff3 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1">&#38378;&#23384;&#30340;&#20248;&#28857;&#22312;&#20110;&#20889;</span>(<span class="ff1">&#32534;&#31243;</span>)<span class="ff1">&#21644;&#25830;&#38500;&#25805;&#20316;&#30340;&#36895;&#29575;&#24555;&#65292;&#32780;<span class="_ _1"> </span></span>NOR<span class="_ _1"> </span><span class="ff1">&#30340;&#20248;&#28857;&#26159;&#20855;&#26377;&#38543;&#26426;&#23384;&#21462;&#21644;&#23545;&#23383;</span></div><div class="t m0 x2 h4 y14 ff1 fs1 fc1 sc1 ls0 ws0">&#33410;&#25191;&#34892;&#20889;<span class="ff3">(</span>&#32534;&#31243;<span class="ff3">)</span>&#25805;&#20316;&#30340;&#33021;&#21147;<span class="ff3">(</span>&#35265;&#19979;&#22270;&#22270;<span class="_ _1"> </span><span class="ff3">2)</span>&#12290;<span class="ff3">NOR<span class="_ _1"> </span></span>&#30340;&#38543;&#26426;&#23384;&#21462;&#33021;&#21147;&#25903;&#25345;&#30452;&#25509;&#20195;&#30721;&#25191;&#34892;<span class="ff3">(XiP)</span>&#65292;&#32780;&#36825;</div><div class="t m0 x2 h4 y15 ff1 fs1 fc1 sc1 ls0 ws0">&#26159;&#23884;&#20837;&#24335;&#24212;&#29992;&#32463;&#24120;&#38656;&#35201;&#30340;&#19968;&#20010;&#21151;&#33021;&#12290;<span class="ff3">NAND<span class="_ _1"> </span></span>&#30340;&#32570;&#28857;&#26159;&#38543;&#26426;&#23384;&#21462;&#30340;&#36895;&#29575;&#24930;&#65292;<span class="ff3">NOR<span class="_ _1"> </span></span>&#30340;&#32570;&#28857;&#26159;&#21463;&#21040;</div><div class="t m0 x2 h4 y16 ff1 fs1 fc1 sc1 ls0 ws0">&#35835;&#21644;&#25830;&#38500;&#36895;&#24230;&#24930;&#30340;&#24615;&#33021;&#21046;&#32422;&#12290;<span class="ff3">NAND<span class="_ _1"> </span></span>&#36739;&#36866;&#21512;&#20110;&#23384;&#20648;&#25991;&#20214;&#12290;&#22914;&#20170;&#65292;&#36234;&#26469;&#36234;&#22810;&#30340;&#22788;&#29702;&#22120;&#20855;&#22791;&#30452;&#25509;</div><div class="t m0 x2 h4 y17 ff3 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1">&#25509;&#21475;&#65292;&#24182;&#33021;&#30452;&#25509;&#20174;<span class="_ _1"> </span></span>NAND(<span class="ff1">&#27809;&#26377;<span class="_ _1"> </span></span>NOR)<span class="ff1">&#23548;&#20837;&#25968;&#25454;&#12290; </span></div><div class="t m0 x2 h4 y18 ff3 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1">&#30340;&#30495;&#27491;&#22909;&#22788;&#26159;&#32534;&#31243;&#36895;&#24230;&#24555;&#12289;&#25830;&#38500;&#26102;&#38388;&#30701;&#12290;</span>NAND<span class="_ _1"> </span><span class="ff1">&#25903;&#25345;&#36895;&#29575;&#36229;&#36807;<span class="_ _1"> </span></span>5Mbps<span class="_ _1"> </span><span class="ff1">&#30340;&#25345;&#32493;&#20889;&#25805;&#20316;&#65292;</span></div><div class="t m0 x2 h4 y19 ff1 fs1 fc1 sc1 ls0 ws0">&#20854;&#21306;&#22359;&#25830;&#38500;&#26102;&#38388;&#30701;&#33267;<span class="_ _1"> </span><span class="ff3">2ms</span>&#65292;&#32780;<span class="_ _1"> </span><span class="ff3">NOR<span class="_ _1"> </span></span>&#26159;<span class="_ _1"> </span><span class="ff3">750ms</span>&#12290;&#26174;&#28982;&#65292;<span class="ff3">NAND<span class="_ _1"> </span></span>&#22312;&#26576;&#20123;&#26041;&#38754;&#20855;&#26377;&#32477;&#23545;&#20248;&#21183;&#12290;&#28982;</div><div class="t m0 x2 h4 y1a ff1 fs1 fc1 sc1 ls0 ws0">&#32780;&#65292;&#23427;&#19981;&#22826;&#36866;&#21512;&#20110;&#30452;&#25509;&#38543;&#26426;&#23384;&#21462;&#12290; </div><div class="t m0 x2 h4 y1b ff1 fs1 fc1 sc1 ls0 ws0">&#23545;&#20110;<span class="_ _1"> </span><span class="ff3">16<span class="_ _1"> </span></span>&#20301;&#30340;&#22120;&#20214;&#65292;<span class="ff3">NOR<span class="_ _1"> </span></span>&#38378;&#23384;&#22823;&#32422;&#38656;&#35201;<span class="_ _1"> </span><span class="ff3">41<span class="_ _1"> </span></span>&#20010;<span class="_ _1"> </span><span class="ff3">I/O<span class="_ _1"> </span></span>&#24341;&#33050;&#65307;&#30456;&#23545;&#32780;&#35328;&#65292;<span class="ff3">NAND<span class="_ _1"> </span></span>&#22120;&#20214;&#20165;&#38656;<span class="_ _1"> </span><span class="ff3">24<span class="_ _1"> </span></span>&#20010;&#24341;&#33050;&#12290;</div><div class="t m0 x2 h5 y1c ff3 fs1 fc1 sc1 ls0 ws0">NAND<span class="_ _1"> </span><span class="ff1">&#22120;&#20214;&#33021;&#22815;&#22797;&#29992;&#25351;<span class="ff4">&#20196;</span>&#12289;<span class="ff4">&#22320;&#22336;</span>&#21644;&#25968;&#25454;<span class="ff4">&#24635;&#32447;</span>&#65292;&#20174;&#32780;&#33410;<span class="ff4">&#30465;</span>&#20102;&#24341;&#33050;&#25968;&#37327;&#12290;&#22797;&#29992;&#25509;&#21475;&#30340;&#19968;<span class="ff4">&#39033;</span>&#22909;&#22788;&#65292;&#23601;</span></div><div class="t m0 x2 h5 y1d ff1 fs1 fc1 sc1 ls0 ws0">&#22312;&#20110;&#33021;&#22815;<span class="ff4">&#21033;</span>&#29992;&#21516;&#26679;&#30340;&#30828;&#20214;&#35774;&#35745;&#21644;&#30005;&#36335;&#26495;&#65292;&#25903;&#25345;&#36739;&#22823;&#30340;<span class="_ _1"> </span><span class="ff3">NAND<span class="_ _1"> </span></span>&#22120;&#20214;&#12290;<span class="ff4">&#30001;</span>&#20110;<span class="ff4">&#26222;</span>&#36890;&#30340;<span class="_ _1"> </span><span class="ff3">TSOP-1<span class="_ _1"> </span><span class="ff4">&#23553;&#35013;</span></span>&#24050;</div><div class="t m0 x2 h5 y1e ff1 fs1 fc1 sc1 ls0 ws0">&#32463;&#27839;&#29992;&#22810;&#24180;&#65292;<span class="ff4">&#35813;</span>&#21151;&#33021;<span class="ff4">&#35753;&#23458;&#25143;</span>&#33021;&#22815;&#25226;&#36739;&#39640;&#23494;&#24230;&#30340;<span class="_ _1"> </span><span class="ff3">NAND<span class="_ _1"> </span></span>&#22120;&#20214;&#31227;&#26893;&#21040;&#30456;&#21516;&#30340;&#30005;&#36335;&#26495;&#19978;&#12290;<span class="ff3">NAND<span class="_ _1"> </span></span>&#22120;&#20214;</div><div class="t m0 x2 h5 y1f ff1 fs1 fc1 sc1 ls0 ws0">&#30340;<span class="ff4">&#21478;</span>&#22806;&#19968;&#20010;&#22909;&#22788;&#26174;&#28982;&#26159;&#20854;<span class="ff4">&#23553;&#35013;&#36873;&#39033;</span>&#65306;<span class="ff3">NAND<span class="_ _1"> </span></span>&#25552;&#20379;&#19968;&#31181;<span class="ff4">&#21402;&#33180;</span>&#30340;<span class="_ _1"> </span><span class="ff3">2Gb<span class="_ _1"> </span></span>&#35064;&#29255;&#25110;&#33021;&#22815;&#25903;&#25345;&#26368;&#22810;<span class="ff4">&#22235;&#39063;&#22534;</span></div><div class="t m0 x2 h5 y20 ff4 fs1 fc1 sc1 ls0 ws0">&#21472;<span class="ff1">&#35064;&#29255;&#65292;&#23481;</span>&#35768;<span class="ff1">&#22312;&#30456;&#21516;&#30340;<span class="_ _1"> </span><span class="ff3">TSOP-1<span class="_ _1"> </span></span></span>&#23553;&#35013;<span class="ff1">&#20013;</span>&#22534;&#21472;<span class="ff1">&#19968;&#20010;<span class="_ _1"> </span><span class="ff3">8Gb<span class="_ _1"> </span></span>&#30340;&#22120;&#20214;&#12290;&#36825;&#23601;&#20351;&#24471;&#19968;&#31181;</span>&#23553;&#35013;<span class="ff1">&#21644;&#25509;&#21475;&#33021;&#22815;&#22312;</span></div><div class="t m0 x2 h4 y21 ff1 fs1 fc1 sc1 ls0 ws0">&#23558;&#26469;&#25903;&#25345;&#36739;&#39640;&#30340;&#23494;&#24230;&#12290;</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>
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