{"id":1581,"date":"2017-09-19T16:36:21","date_gmt":"2017-09-19T08:36:21","guid":{"rendered":"http:\/\/www.vttbga.com\/?p=1581"},"modified":"2017-09-19T12:28:17","modified_gmt":"2017-09-19T04:28:17","slug":"ddr3%ef%bc%8cddr2%e5%92%8cddr1%e4%b9%8b%e9%97%b4%e7%9a%84%e5%8c%ba%e5%88%ab%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"http:\/\/www.vttbga.com\/news\/1581.html","title":{"rendered":"DDR3\uff0cDDR2\u548cDDR1\u4e4b\u95f4\u7684\u533a\u522b\u6709\u54ea\u4e9b"},"content":{"rendered":"<p>\u3000\u3000\u968f\u7740\u5185\u5b58\u6761\u7684\u4f7f\u7528\u8303\u56f4\u8d8a\u6765\u8d8a\u5e7f\uff0c\u800c\u4e14\u4ea7\u54c1\u4e0d\u65ad\u7684\u8fed\u4ee3\u66f4\u65b0\uff0c\u76ee\u524d\u5e02\u9762\u4e0a\u51fa\u73b0\u4e86DDR1\u3001DDR2\u3001DDR3\u4e09\u79cd\u5185\u5b58\u6761\uff0c\u4f46\u662f\u6709\u5f88\u591a\u4eba\u90fd\u4e0d\u592a\u6e05\u695a\u8fd9\u4e09\u79cd\u5185\u5b58\u6761\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u5d34\u6cf0\u79d1\u6280BGA\u8fd4\u4fee\u53f0\u5382\u5bb6\u5c0f\u7f16\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b<strong>DDR3\uff0cDDR2\u548cDDR1\u4e4b\u95f4\u7684\u533a\u522b<\/strong><br 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DDR2 DDR3\u5728\u7a81\u53d1\u957f\u5ea6(BurstLength\uff0cBL)<\/p>\n<p>\u3000\u3000\u7531\u4e8eDDR3\u7684\u9884\u53d6\u4e3a8bit\uff0c\u6240\u4ee5\u7a81\u53d1\u4f20\u8f93\u5468\u671f(BurstLength\uff0cBL)\u4e5f\u56fa\u5b9a\u4e3a8\uff0c\u5e73\u800cDDR\u7684\u4f20\u8f93\u5468\u671f\u662f2\uff0c\u800cDDR2\u662f4\u3002<\/p>\n<p>\u3000\u3000<strong>DDR1 DDR2 DDR3\u5728\u903b\u8f91Bank\u6570\u91cf\u4e0a\u7684\u533a\u522b<\/strong><\/p>\n<p>\u3000\u3000DDR\u4e2d\u67092\u4e2aBank\u548c4\u4e2aBank\u3002DDR2\u67094\u4e2aBank\u548c8\u4e2aBank\u3002\u800c\u5230DDR3\u7684\u65f6\u5019\u5df2\u7ecf\u662f8\u4e2aBank\u548c16\u4e2aBank\u4e86\u3002\u76ee\u524d\u5c31\u662f\u5e94\u5bf9\u672a\u6765\u5927\u5bb9\u91cf\u82af\u7247\u7684\u8981\u6c42\uff0c\u800cDDR3\u5f88\u53ef\u80fd\u5c06\u4ece2G\u8d77\u6b65\uff0c\u56e0\u6b64\u903b\u8f91Bank\u5c31\u662f8\u4e2a\uff0c\u53e6\u5916\u8fd8\u4e3a\u672a\u6765\u768416\u903b\u8f91Bank\u505a\u597d\u4e86\u51c6\u5907\u3002<\/p>\n<p>\u3000\u3000<strong>DDR1 DDR2 DDR3\u7684\u5bfb\u5740\u65f6\u5e8f\u533a\u522b(Timing)<\/strong><\/p>\n<p>\u3000\u3000\u5ef6\u8fdf\u5468\u671f\u6570\u4eceDDR\u4e00\u4ee3\u5230\u4e8c\u4ee3\u518d\u5230\u4e09\u4ee3\u5185\u5b58\u4e00\u52a0\u4e00\u76f4\u5728\u589e\u52a0\uff0c\u4e09\u4ee3\u5185\u5b58\u7684CL\u5468\u671f\u4e5f\u5c06\u6bd4\u4e8c\u4ee3\u5185\u5b58\u6709\u76f8\u5e94\u7684\u63d0\u9ad8\u3002\u4e8c\u4ee3\u5185\u5b58\u7684CL\u8303\u56f4\u4e00\u822c\u57282\u52305\u4e4b\u95f4\uff0c\u800c\u4e8c\u4ee3\u5185\u5b58\u5df2\u7ecf\u589e\u52a0\u52305\u523011\u4e4b\u95f4\uff0c\u5e76\u4e14\u4e09\u4ee3\u5185\u5b58\u5ef6\u8fdf(AL)\u7684\u8bbe\u8ba1\u4e5f\u6709\u6240\u53d8\u5316\u3002\u4e8c\u4ee3\u5185\u5b58\u65f6AL\u7684\u8303\u56f4\u662f0\u52304\uff0c\u800c\u4e09\u4ee3\u5185\u5b58\u65f6AL\u6709\u4e09\u79cd\u9009\u9879\uff0c\u5206\u522b\u662f0\u3001CL-1\u548cCL-2\u3002\u53e6\u5916\uff0c\u4e09\u4ee3\u5185\u5b58\u8fd8\u65b0\u589e\u52a0\u4e86\u4e00\u4e2a\u65f6\u5e8f\u53c2\u6570-\u5199\u5165\u5ef6\u8fdf\u3002<\/p>\n<p>\u3000\u3000\u76f8\u5bf9\u4e8eDDR1 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