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ddr 输入寄存器 ...................................................................................................................... 9–18

ddr 输出寄存器 ................................................................................................................... 9–21

双向的 ddr 寄存器 ......................................................................................................... 9–22

Conclusion ............................................................................................................................................ 9–24

文档修订 history ............................................................................................................... 9–25

部分 iv. i/o standards

修订 history .................................................................................................................................... 9–1

chapter 10. 可选择的 i/o standards 在 cyclone ii 设备

介绍 .......................................................................................................................................... 10–1

supported i/o standards ................................................................................................................... 10–1

3.3-v lvttl (eia/电子元件工业联合会标准 jesd8-b) .......................................................................... 10–3

3.3-v lvcmos (eia/电子元件工业联合会标准 jesd8-b) ..................................................................... 10–4

3.3-v (pci 特定的 interest 组 [sig] pci local 总线规格修订 3.0) ............. 10–4

3.3-v pci-x ...................................................................................................................................... 10–6

容易-至-使用, 低-费用 pci 表示解决方案 ............................................................................ 10–6

2.5-v lvttl (eia/电子元件工业联合会标准 eia/jesd8-5) ................................................................. 10–7

2.5-v lvcmos (eia/电子元件工业联合会标准eia/jesd8-5) ............................................................ 10–7

sstl-2 类 i &放大; ii (eia/电子元件工业联合会标准 jesd8-9a) ............................................................. 10–7

pseudo-差别的 sstl-2 ........................................................................................................... 10–8

1.8-v lvttl (eia/电子元件工业联合会标准 eia/jesd8-7) ................................................................. 10–9

1.8-v lvcmos (eia/电子元件工业联合会标准eia/jesd8-7) .......................................................... 10–10

sstl-18 类 i &放大; ii ...................................................................................................................... 10–10

1.8-v hstl 类 i &放大; ii ................................................................................................................ 10–11

pseudo-差别的 sstl-18 类 i &放大; 差别的 sstl-18 类 ii ................................... 10–12

1.8-v pseudo-差别的 hstl 类 i&放大; ii ............................................................................ 10–13

1.5-v lvcmos (eia/电子元件工业联合会标准 jesd8-11) .................................................................. 10–14

1.5-v hstl 类 i &放大; ii ................................................................................................................ 10–14

1.5-v pseudo-差别的 hstl 类 i&放大; ii ............................................................................ 10–15

lvds, rsds &放大; 迷你-lvds ......................................................................................................... 10–16

差别的 lvpecl .................................................................................................................... 10–17

Cyclone ii i/o banks ........................................................................................................................ 10–18

可编程序的电流驱动力量 .......................................................................................... 10–24

电压-关联 i/o 标准期ination ...................................................................... 10–26

差别的 i/o 标准末端 .................................................................................... 10–26

i/o 驱动器阻抗相一致 (r

) &放大; 序列末端 (r

) ......................................... 10–27

垫子 placement &放大; 直流指导原则 ..................................................................................................... 10–27

差别的垫子 placement guidelines ..................................................................................... 10–28

REF

垫子 placement 指导原则 ................................................................................................. 10–28

直流指导原则 ............................................................................................................................... 10–32

5.0-v 设备兼容性 .............................................................................................................. 10–34

Conclusion .......................................................................................................................................... 10–36

更多信息 .............................................................................................................................. 10–37

References ........................................................................................................................................... 10–37

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altera 公司 vii cyclone ii 设备 handbook, 容积 1 内容 ddr 输入寄存器 ...................................................................................................................... 9–18 ddr 输出寄存器 ................................................................................................................... 9–21 双向的 ddr 寄存器 ......................................................................................................... 9–22 Conclusion ............................................................................................................................................ 9–24 文档修订 history ............................................................................................................... 9–25 部分 iv. i/o standards 修订 history .................................................................................................................................... 9–1 chapter 10. 可选择的 i/o standards 在 cyclone ii 设备介绍 .......................................................................................................................................... 10–1 supported i/o standards ................................................................................................................... 10–1 3.3-v lvttl (eia/电子元件工业联合会标准 jesd8-b) .......................................................................... 10–3 3.3-v lvcmos (eia/电子元件工业联合会标准 jesd8-b) ..................................................................... 10–4 3.3-v (pci 特定的 interest 组 [sig] pci local 总线规格修订 3.0) ............. 10–4 3.3-v pci-x ...................................................................................................................................... 10–6 容易-至-使用, 低-费用 pci 表示解决方案 ............................................................................ 10–6 2.5-v lvttl (eia/电子元件工业联合会标准 eia/jesd8-5) ................................................................. 10–7 2.5-v lvcmos (eia/电子元件工业联合会标准eia/jesd8-5) ............................................................ 10–7 sstl-2 类 i &放大; ii (eia/电子元件工业联合会标准 jesd8-9a) ............................................................. 10–7 pseudo-差别的 sstl-2 ........................................................................................................... 10–8 1.8-v lvttl (eia/电子元件工业联合会标准 eia/jesd8-7) ................................................................. 10–9 1.8-v lvcmos (eia/电子元件工业联合会标准eia/jesd8-7) .......................................................... 10–10 sstl-18 类 i &放大; ii ...................................................................................................................... 10–10 1.8-v hstl 类 i &放大; ii ................................................................................................................ 10–11 pseudo-差别的 sstl-18 类 i &放大; 差别的 sstl-18 类 ii ................................... 10–12 1.8-v pseudo-差别的 hstl 类 i&放大; ii ............................................................................ 10–13 1.5-v lvcmos (eia/电子元件工业联合会标准 jesd8-11) .................................................................. 10–14 1.5-v hstl 类 i &放大; ii ................................................................................................................ 10–14 1.5-v pseudo-差别的 hstl 类 i&放大; ii ............................................................................ 10–15 lvds, rsds &放大; 迷你-lvds ......................................................................................................... 10–16 差别的 lvpecl .................................................................................................................... 10–17 Cyclone ii i/o banks ........................................................................................................................ 10–18 可编程序的电流驱动力量 .......................................................................................... 10–24 电压-关联 i/o 标准期ination ...................................................................... 10–26 差别的 i/o 标准末端 .................................................................................... 10–26 i/o 驱动器阻抗相一致 (r S ) &放大; 序列末端 (r S ) ......................................... 10–27 垫子 placement &放大; 直流指导原则 ..................................................................................................... 10–27 差别的垫子 placement guidelines ..................................................................................... 10–28 V REF 垫子 placement 指导原则 ................................................................................................. 10–28 直流指导原则 ............................................................................................................................... 10–32 5.0-v 设备兼容性 .............................................................................................................. 10–34 Conclusion .......................................................................................................................................... 10–36 更多信息 .............................................................................................................................. 10–37 References ........................................................................................................................................... 10–37 www.datasheet4u.com

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