爱手册爱翻译 中为电子科技
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目录
1. DDR原理性连接框图 ........................................................................................................... 3
2. DDR布局布线规则 ............................................................................................................... 4
3. DDR布线细节 ....................................................................................................................... 5
3.1 数据线的交换 ................................................................................................................ 6
3.2 DDR3（64bits）T 型拓扑介绍 ....................................................................................... 6
3.3 DDR3（64bits）Fly-by 型拓扑介绍 ............................................................................... 6
3.4 2GB DDR布局布线建议 ................................................................................................. 6
3.5 4GB DDR布局布线建议 ................................................................................................. 7
4. DDR布局布线实例 ............................................................................................................... 8
4.1 4 片 DDR T型拓扑实例 .................................................................................................. 8
4.2 8 片 DDR Fly-by型拓扑实例 ........................................................................................ 12
5. 高速信号布线建议 ............................................................................................................ 19
6. 地平面设计建议 ................................................................................................................ 19
7. DDR POWER布线建议 ........................................................................................................ 21
8. 参考 .................................................................................................................................... 23
9. 声明 .................................................................................................................................... 23
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