1\u3001\u903b\u8f91Bank\u6570\u91cf<\/p>\n
DDR2 SDRAM\u4e2d\u67094Bank\u548c8Bank\u7684\u8bbe\u8ba1\uff0c\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u5e94\u5bf9\u672a\u6765\u5927\u5bb9\u91cf\u82af\u7247\u7684\u9700\u6c42\u3002\u800cDDR3\u5f88\u53ef\u80fd\u5c06\u4ece2Gb\u5bb9\u91cf\u8d77\u6b65\uff0c\u56e0\u6b64\u8d77\u59cb\u7684\u903b\u8f91Bank\u5c31\u662f8\u4e2a\uff0c\u53e6\u5916\u8fd8\u4e3a\u672a\u6765\u768416\u4e2a\u903b\u8f91Bank\u505a\u597d\u4e86\u51c6\u5907\u3002<\/p>\n
2\u3001\u5c01\u88c5\uff08Packages\uff09<\/p>\n
DDR3\u7531\u4e8e\u65b0\u589e\u4e86\u4e00\u4e9b\u529f\u80fd\uff0c\u6240\u4ee5\u5728\u5f15\u811a\u65b9\u9762\u4f1a\u6709\u6240\u589e\u52a0\uff0c8bit\u82af\u7247\u91c7\u752878\u7403FBGA\u5c01\u88c5\uff0c16bit\u82af\u7247\u91c7\u752896\u7403FBGA\u5c01\u88c5\uff0c\u800cDDR2\u5219\u670960\/68\/84\u7403FBGA\u5c01\u88c5\u4e09\u79cd\u89c4\u683c\u3002\u5e76\u4e14DDR3\u5fc5\u987b\u662f\u7eff\u8272\u5c01\u88c5\uff0c\u4e0d\u80fd\u542b\u6709\u4efb\u4f55\u6709\u5bb3\u7269\u8d28\u3002<\/p>\n
3\u3001\u7a81\u53d1\u957f\u5ea6\uff08BL\uff0cBurst Length\uff09<\/p>\n
\u7531\u4e8eDDR3\u7684\u9884\u53d6\u4e3a8bit\uff0c\u6240\u4ee5\u7a81\u53d1\u4f20\u8f93\u5468\u671f\uff08BL\uff0cBurst Length\uff09\u4e5f\u56fa\u5b9a\u4e3a8\uff0c\u800c\u5bf9\u4e8eDDR2\u548c\u65e9\u671f\u7684DDR\u67b6\u6784\u7684\u7cfb\u7edf\uff0cBL=4\u4e5f\u662f\u5e38\u7528\u7684\uff0cDDR3\u4e3a\u6b64\u589e\u52a0\u4e86\u4e00\u4e2a4-bit Burst Chop\uff08\u7a81\u53d1\u7a81\u53d8\uff09\u6a21\u5f0f\uff0c\u5373\u7531\u4e00\u4e2aBL=4\u7684\u8bfb\u53d6\u64cd\u4f5c\u52a0\u4e0a\u4e00\u4e2aBL=4\u7684\u5199\u5165\u64cd\u4f5c\u6765\u5408\u6210\u4e00\u4e2aBL=8\u7684\u6570\u636e\u7a81\u53d1\u4f20\u8f93\uff0c\u5c4a\u65f6\u53ef\u901a\u8fc7A12\u5730\u5740\u7ebf\u6765\u63a7\u5236\u8fd9\u4e00\u7a81\u53d1\u6a21\u5f0f\u3002\u800c\u4e14\u9700\u8981\u6307\u51fa\u7684\u662f\uff0c\u4efb\u4f55\u7a81\u53d1\u4e2d\u65ad\u64cd\u4f5c\u90fd\u5c06\u5728DDR3\u5185\u5b58\u4e2d\u4e88\u4ee5\u7981\u6b62\uff0c\u4e14\u4e0d\u4e88\u652f\u6301\uff0c\u53d6\u800c\u4ee3\u4e4b\u7684\u662f\u66f4\u7075\u6d3b\u7684\u7a81\u53d1\u4f20\u8f93\u63a7\u5236\uff08\u59824bit\u987a\u5e8f\u7a81\u53d1\uff09\u3002<\/p>\n
3\u3001\u5bfb\u5740\u65f6\u5e8f\uff08Timing\uff09<\/p>\n
\u5c31\u50cfDDR2\u4eceDDR\u8f6c\u53d8\u800c\u6765\u540e\u5ef6\u8fdf\u5468\u671f\u6570\u589e\u52a0\u4e00\u6837\uff0cDDR3\u7684CL\u5468\u671f\u4e5f\u5c06\u6bd4DDR2\u6709\u6240\u63d0\u9ad8\u3002DDR2\u7684CL\u8303\u56f4\u4e00\u822c\u57282\u81f35\u4e4b\u95f4\uff0c\u800cDDR3\u5219\u57285\u81f311\u4e4b\u95f4\uff0c\u4e14\u9644\u52a0\u5ef6\u8fdf\uff08AL\uff09\u7684\u8bbe\u8ba1\u4e5f\u6709\u6240\u53d8\u5316\u3002DDR2\u65f6AL\u7684\u8303\u56f4\u662f0\u81f34\uff0c\u800cDDR3\u65f6AL\u6709\u4e09\u79cd\u9009\u9879\uff0c\u5206\u522b\u662f0\u3001CL-1\u548cCL-2\u3002\u53e6\u5916\uff0cDDR3\u8fd8\u65b0\u589e\u52a0\u4e86\u4e00\u4e2a\u65f6\u5e8f\u53c2\u6570\u2014\u2014\u5199\u5165\u5ef6\u8fdf\uff08CWD\uff09\uff0c\u8fd9\u4e00\u53c2\u6570\u5c06\u6839\u636e\u5177\u4f53\u7684\u5de5\u4f5c\u9891\u7387\u800c\u5b9a\u3002<\/p>\n
4\u3001\u65b0\u589e\u529f\u80fd\u2014\u2014\u91cd\u7f6e\uff08Reset\uff09<\/p>\n
\u91cd\u7f6e\u662fDDR3\u65b0\u589e\u7684\u4e00\u9879\u91cd\u8981\u529f\u80fd\uff0c\u5e76\u4e3a\u6b64\u4e13\u95e8\u51c6\u5907\u4e86\u4e00\u4e2a\u5f15\u811a\u3002DRAM\u4e1a\u754c\u5df2\u7ecf\u5f88\u65e9\u4ee5\u524d\u5c31\u8981\u6c42\u589e\u8fd9\u4e00\u529f\u80fd\uff0c\u5982\u4eca\u7ec8\u4e8e\u5728DDR3\u8eab\u4e0a\u5b9e\u73b0\u3002\u8fd9\u4e00\u5f15\u811a\u5c06\u4f7fDDR3\u7684\u521d\u59cb\u5316\u5904\u7406\u53d8\u5f97\u7b80\u5355\u3002\u5f53Reset\u547d\u4ee4\u6709\u6548\u65f6\uff0cDDR3\u5185\u5b58\u5c06\u505c\u6b62\u6240\u6709\u7684\u64cd\u4f5c\uff0c\u5e76\u5207\u6362\u81f3\u6700\u5c11\u91cf\u6d3b\u52a8\u7684\u72b6\u6001\uff0c\u4ee5\u8282\u7ea6\u7535\u529b\u3002\u5728Reset\u671f\u95f4\uff0cDDR3\u5185\u5b58\u5c06\u5173\u95ed\u5185\u5728\u7684\u5927\u90e8\u5206\u529f\u80fd\uff0c\u6240\u4ee5\u6709\u6570\u636e\u63a5\u6536\u4e0e\u53d1\u9001\u5668\u90fd\u5c06\u5173\u95ed\u3002\u6240\u6709\u5185\u90e8\u7684\u7a0b\u5e8f\u88c5\u7f6e\u5c06\u590d\u4f4d\uff0cDLL\uff08\u5ef6\u8fdf\u9501\u76f8\u73af\u8def\uff09\u4e0e\u65f6\u949f\u7535\u8def\u5c06\u505c\u6b62\u5de5\u4f5c\uff0c\u800c\u4e14\u4e0d\u7406\u776c\u6570\u636e\u603b\u7ebf\u4e0a\u7684\u4efb\u4f55\u52a8\u9759\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5c06\u4f7fDDR3\u8fbe\u5230\u6700\u8282\u7701\u7535\u529b\u7684\u76ee\u7684\u3002<\/p>\n
5\u3001\u65b0\u589e\u529f\u80fd\u2014\u2014ZQ\u6821\u51c6<\/p>\n
ZQ\u4e5f\u662f\u4e00\u4e2a\u65b0\u589e\u7684\u811a\uff0c\u5728\u8fd9\u4e2a\u5f15\u811a\u4e0a\u63a5\u6709\u4e00\u4e2a240\u6b27\u59c6\u7684\u4f4e\u516c\u5dee\u53c2\u8003\u7535\u963b\u3002\u8fd9\u4e2a\u5f15\u811a\u901a\u8fc7\u4e00\u4e2a\u547d\u4ee4\u96c6\uff0c\u901a\u8fc7\u7247\u4e0a\u6821\u51c6\u5f15\u64ce\uff08ODCE\uff0cOn-Die Calibration Engine\uff09\u6765\u81ea\u52a8\u6821\u9a8c\u6570\u636e\u8f93\u51fa\u9a71\u52a8\u5668\u5bfc\u901a\u7535\u963b\u4e0eODT\u7684\u7ec8\u7ed3\u7535\u963b\u503c\u3002\u5f53\u7cfb\u7edf\u53d1\u51fa\u8fd9\u4e00\u6307\u4ee4\u4e4b\u540e\uff0c\u5c06\u7528\u76f8\u5e94\u7684\u65f6\u949f\u5468\u671f\uff08\u5728\u52a0\u7535\u4e0e\u521d\u59cb\u5316\u4e4b\u540e\u7528512\u4e2a\u65f6\u949f\u5468\u671f\uff0c\u5728\u9000\u51fa\u81ea\u5237\u65b0\u64cd\u4f5c\u540e\u7528256\u65f6\u949f\u5468\u671f\u3001\u5728\u5176\u4ed6\u60c5\u51b5\u4e0b\u752864\u4e2a\u65f6\u949f\u5468\u671f\uff09\u5bf9\u5bfc\u901a\u7535\u963b\u548cODT\u7535\u963b\u8fdb\u884c\u91cd\u65b0\u6821\u51c6\u3002<\/p>\n
6\u3001\u53c2\u8003\u7535\u538b\u5206\u6210\u4e24\u4e2a<\/p>\n
\u5bf9\u4e8e\u5185\u5b58\u7cfb\u7edf\u5de5\u4f5c\u975e\u5e38\u91cd\u8981\u7684\u53c2\u8003\u7535\u538b\u4fe1\u53f7VREF\uff0c\u5728DDR3\u7cfb\u7edf\u4e2d\u5c06\u5206\u4e3a\u4e24\u4e2a\u4fe1\u53f7\u3002\u4e00\u4e2a\u662f\u4e3a\u547d\u4ee4\u4e0e\u5730\u5740\u4fe1\u53f7\u670d\u52a1\u7684VREFCA\uff0c\u53e6\u4e00\u4e2a\u662f\u4e3a\u6570\u636e\u603b\u7ebf\u670d\u52a1\u7684VREFDQ\uff0c\u5b83\u5c06\u6709\u6548\u7684\u63d0\u9ad8\u7cfb\u7edf\u6570\u636e\u603b\u7ebf\u7684\u4fe1\u566a\u7b49\u7ea7\u3002<\/p>\n
7\u3001\u6839\u636e\u6e29\u5ea6\u81ea\u52a8\u81ea\u5237\u65b0\uff08SRT\uff0cSelf-Refresh Temperature\uff09<\/p>\n
\u4e3a\u4e86\u4fdd\u8bc1\u6240\u4fdd\u5b58\u7684\u6570\u636e\u4e0d\u4e22\u5931\uff0cDRAM\u5fc5\u987b\u5b9a\u65f6\u8fdb\u884c\u5237\u65b0\uff0cDDR3\u4e5f\u4e0d\u4f8b\u5916\u3002\u4e0d\u8fc7\uff0c\u4e3a\u4e86\u6700\u5927\u7684\u8282\u7701\u7535\u529b\uff0cDDR3\u91c7\u7528\u4e86\u4e00\u79cd\u65b0\u578b\u7684\u81ea\u52a8\u81ea\u5237\u65b0\u8bbe\u8ba1\uff08ASR\uff0cAutomatic Self-Refresh\uff09\u3002\u5f53\u5f00\u59cbASR\u4e4b\u540e\uff0c\u5c06\u901a\u8fc7\u4e00\u4e2a\u5185\u7f6e\u4e8eDRAM\u82af\u7247\u7684\u6e29\u5ea6\u4f20\u611f\u5668\u6765\u63a7\u5236\u5237\u65b0\u7684\u9891\u7387\uff0c\u56e0\u4e3a\u5237\u65b0\u9891\u7387\u9ad8\u7684\u8bdd\uff0c\u6d88\u7535\u5c31\u5927\uff0c\u6e29\u5ea6\u4e5f\u968f\u4e4b\u5347\u9ad8\u3002\u800c\u6e29\u5ea6\u4f20\u611f\u5668\u5219\u5728\u4fdd\u8bc1\u6570\u636e\u4e0d\u4e22\u5931\u7684\u60c5\u51b5\u4e0b\uff0c\u5c3d\u91cf\u51cf\u5c11\u5237\u65b0\u9891\u7387\uff0c\u964d\u4f4e\u5de5\u4f5c\u6e29\u5ea6\u3002\u4e0d\u8fc7DDR3\u7684ASR\u662f\u53ef\u9009\u8bbe\u8ba1\uff0c\u5e76\u4e0d\u89c1\u5f97\u5e02\u573a\u4e0a\u7684DDR3\u5185\u5b58\u90fd\u652f\u6301\u8fd9\u4e00\u529f\u80fd\uff0c\u56e0\u6b64\u8fd8\u6709\u4e00\u4e2a\u9644\u52a0\u7684\u529f\u80fd\u5c31\u662f\u81ea\u5237\u65b0\u6e29\u5ea6\u8303\u56f4\uff08SRT\uff0cSelf-Refresh Temperature\uff09\u3002\u901a\u8fc7\u6a21\u5f0f\u5bc4\u5b58\u5668\uff0c\u53ef\u4ee5\u9009\u62e9\u4e24\u4e2a\u6e29\u5ea6\u8303\u56f4\uff0c\u4e00\u4e2a\u662f\u666e\u901a\u7684\u7684\u6e29\u5ea6\u8303\u56f4\uff08\u4f8b\u59820\u2103\u81f385\u2103\uff09\uff0c\u53e6\u4e00\u4e2a\u662f\u6269\u5c55\u6e29\u5ea6\u8303\u56f4\uff0c\u6bd4\u5982\u6700\u9ad8\u523095\u2103\u3002\u5bf9\u4e8eDRAM\u5185\u90e8\u8bbe\u5b9a\u7684\u8fd9\u4e24\u79cd\u6e29\u5ea6\u8303\u56f4\uff0cDRAM\u5c06\u4ee5\u6052\u5b9a\u7684\u9891\u7387\u548c\u7535\u6d41\u8fdb\u884c\u5237\u65b0\u64cd\u4f5c\u3002<\/p>\n
8\u3001\u5c40\u90e8\u81ea\u5237\u65b0\uff08RASR\uff0cPartial Array Self-Refresh\uff09<\/p>\n
\u8fd9\u662fDDR3\u7684\u4e00\u4e2a\u53ef\u9009\u9879\uff0c\u901a\u8fc7\u8fd9\u4e00\u529f\u80fd\uff0cDDR3\u5185\u5b58\u82af\u7247\u53ef\u4ee5\u53ea\u5237\u65b0\u90e8\u5206\u903b\u8f91Bank\uff0c\u800c\u4e0d\u662f\u5168\u90e8\u5237\u65b0\uff0c\u4ece\u800c\u6700\u5927\u9650\u5ea6\u7684\u51cf\u5c11\u56e0\u81ea\u5237\u65b0\u4ea7\u751f\u7684\u7535\u529b\u6d88\u8017\u3002\u8fd9\u4e00\u70b9\u4e0e\u79fb\u52a8\u578b\u5185\u5b58\uff08Mobile DRAM\uff09\u7684\u8bbe\u8ba1\u5f88\u76f8\u4f3c\u3002<\/p>\n
9\u3001\u70b9\u5bf9\u70b9\u8fde\u63a5\uff08P2P\uff0cPoint-to-Point\uff09<\/p>\n
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