https://www.hwwiki.net/ 2026-10-19T07:01:15+00:00 https://www.hwwiki.net/ https://www.hwwiki.net/lib/tpl/dokuwiki/images/favicon.ico text/html 2026-10-16T07:10:22+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?id=%E5%9C%A8%E7%BA%BF%E5%B7%A5%E5%85%B7:%E5%85%83%E5%99%A8%E4%BB%B6:%E5%85%83%E5%99%A8%E4%BB%B6%E5%A4%9A%E7%AB%99%E6%9F%A5%E8%AF%A2&rev=1792105822&do=diff text/html 2026-10-12T06:54:13+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?id=%E5%85%83%E5%99%A8%E4%BB%B6:%E5%A6%82%E4%BD%95%E8%B4%AD%E4%B9%B0%E5%85%83%E5%99%A8%E4%BB%B6&rev=1791759253&do=diff 如何购买元器件 元器件的购买分线上和线下渠道，线下有供应商以及电子城柜台，柜台现在比较少人去了，线下主要是供应商的渠道，一般公司来说供应商渠道还是首选，但对于个人或小公司来说线上才是首选。 text/html 2026-10-12T06:54:02+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?id=%E5%85%83%E5%99%A8%E4%BB%B6:%E5%A6%82%E4%BD%95%E6%9F%A5%E6%89%BE%E5%85%83%E5%99%A8%E4%BB%B6eda%E5%BA%93&rev=1791759242&do=diff 如何查找元器件EDA库 原理图需要的元器件Sybmol，PCB需要的Footprint，以及3D需要的结构图，推荐查找顺序如下。 如下渠道均可以提供各个EDA软件如PADS、Orcad、Allegro、AD等对应的库，按所使用的EDA工具，下载对应的库即可。 text/html 2026-10-12T06:53:47+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?id=%E5%85%83%E5%99%A8%E4%BB%B6:%E5%A6%82%E4%BD%95%E6%9F%A5%E6%89%BE%E5%85%83%E5%99%A8%E4%BB%B6%E7%9A%84%E8%A7%84%E6%A0%BC%E4%B9%A6&rev=1791759227&do=diff 如何查找元器件的规格书 按规格书齐全、准确、及方便下载等，推荐顺序如下： 供应商 如果有对应的供应商，直接找供应商要，供应商提供的规格书一般比网上的更新，网上很多是旧版的。 text/html 2026-10-11T21:58:57+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?id=%E5%9C%A8%E7%BA%BF%E5%B7%A5%E5%85%B7:%E5%85%83%E5%99%A8%E4%BB%B6:%E5%85%83%E5%99%A8%E4%BB%B6datasheet-eda%E5%BA%93-%E8%B4%AD%E4%B9%B0%E5%A4%9A%E7%AB%99%E6%9F%A5%E8%AF%A2&rev=1791727137&do=diff text/html 2026-10-11T21:56:53+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?id=%E5%9C%A8%E7%BA%BF%E5%B7%A5%E5%85%B7:%E5%85%83%E5%99%A8%E4%BB%B6:datasheet%E5%A4%9A%E7%AB%99%E6%9F%A5%E8%AF%A2&rev=1791727013&do=diff text/html 2026-07-25T17:55:32+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E8%AE%BE%E8%AE%A1%3Apcb%3Apads%3Apads_%E6%98%BE%E7%A4%BA%E9%80%9A%E7%94%A8%E8%A6%86%E9%93%9C%E5%B9%B3%E9%9D%A2%E6%98%BE%E7%A4%BA%E5%99%A8.png&ns=%E8%AE%BE%E8%AE%A1%3Apcb%3Apads&rev=1784973332&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=479&h=500&t=1784973332&amp;tok=093d4e&amp;media=%E8%AE%BE%E8%AE%A1:pcb:pads:pads_%E6%98%BE%E7%A4%BA%E9%80%9A%E7%94%A8%E8%A6%86%E9%93%9C%E5%B9%B3%E9%9D%A2%E6%98%BE%E7%A4%BA%E5%99%A8.png" alt="设计:pcb:pads:pads_显示通用覆铜平面显示器.png" /> text/html 2026-06-28T16:37:28+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Amicron_ddr3_sdram_datasheet.pdf&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1782635848&tab_details=history&mediado=diff&do=media text/html 2026-06-28T16:32:19+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Afigure_5_256_meg_x_16_functional_block_diagram.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1782635539&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=279&t=1782635539&amp;tok=165650&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:figure_5_256_meg_x_16_functional_block_diagram.png" alt="元器件:ic:memory:ddr:figure_5_256_meg_x_16_functional_block_diagram.png" /> text/html 2026-06-28T16:04:09+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Amicron_ddr3_addressing.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1782633849&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=200&t=1782633849&amp;tok=a882ef&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:micron_ddr3_addressing.png" alt="元器件:ic:memory:ddr:micron_ddr3_addressing.png" /> text/html 2026-06-08T08:26:06+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Addr5-more-than-a-generational-update-wp.pdf&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1780878366&tab_details=history&mediado=diff&do=media text/html 2026-06-07T15:55:21+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E8%AE%BE%E8%AE%A1%3A%E5%8E%9F%E7%90%86%E5%9B%BE%3Acadence_design_entry%3Ahdl%E6%89%B9%E9%87%8F%E6%9B%BF%E6%8D%A2%E5%85%83%E5%99%A8%E4%BB%B6.png&ns=%E8%AE%BE%E8%AE%A1%3A%E5%8E%9F%E7%90%86%E5%9B%BE%3Acadence_design_entry&rev=1780818921&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=418&t=1780818921&amp;tok=cfcb0e&amp;media=%E8%AE%BE%E8%AE%A1:%E5%8E%9F%E7%90%86%E5%9B%BE:cadence_design_entry:hdl%E6%89%B9%E9%87%8F%E6%9B%BF%E6%8D%A2%E5%85%83%E5%99%A8%E4%BB%B6.png" alt="设计:原理图:cadence_design_entry:hdl批量替换元器件.png" /> text/html 2026-02-01T20:11:57+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Afigure_2_simplified_block_diagram_of_2n-prefetch_read.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1769947917&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=223&t=1769947917&amp;tok=d0535f&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:figure_2_simplified_block_diagram_of_2n-prefetch_read.png" alt="元器件:ic:memory:ddr:figure_2_simplified_block_diagram_of_2n-prefetch_read.png" /> text/html 2026-02-01T20:10:18+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Afigure_3_simplified_block_diagram_of_2n-prefetch_write.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1769947818&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=326&t=1769947818&amp;tok=9d27a5&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:figure_3_simplified_block_diagram_of_2n-prefetch_write.png" alt="元器件:ic:memory:ddr:figure_3_simplified_block_diagram_of_2n-prefetch_write.png" /> text/html 2026-02-01T20:04:45+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Atn-46-05_general_ddr_sdram_functionality.pdf&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1769947485&tab_details=history&mediado=diff&do=media text/html 2026-02-01T19:57:44+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Afigure_4_ddr4_solution_to_prefetch_of_eight.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1769947064&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=288&t=1769947064&amp;tok=9a983a&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:figure_4_ddr4_solution_to_prefetch_of_eight.png" alt="元器件:ic:memory:ddr:figure_4_ddr4_solution_to_prefetch_of_eight.png" /> text/html 2026-02-01T19:56:47+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Afigure_3_historical_dram_prefetch.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1769947007&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=500&h=302&t=1769947007&amp;tok=f8ae26&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:figure_3_historical_dram_prefetch.png" alt="元器件:ic:memory:ddr:figure_3_historical_dram_prefetch.png" /> text/html 2026-02-01T19:54:38+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Afigure_2_sdram_performance_scaling_enabled_by_prefetch.png&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1769946878&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=389&h=289&t=1769946878&amp;tok=77e04d&amp;media=%E5%85%83%E5%99%A8%E4%BB%B6:ic:memory:ddr:figure_2_sdram_performance_scaling_enabled_by_prefetch.png" alt="元器件:ic:memory:ddr:figure_2_sdram_performance_scaling_enabled_by_prefetch.png" /> text/html 2026-01-16T08:35:59+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr%3Addr_revision_20260116a.xlsx&ns=%E5%85%83%E5%99%A8%E4%BB%B6%3Aic%3Amemory%3Addr&rev=1768523759&tab_details=history&mediado=diff&do=media text/html 2026-01-13T14:20:09+00:00 hwwiki (wzj07220624@undisclosed.example.com) https://www.hwwiki.net/doku.php?image=%E8%AE%BE%E8%AE%A1%3Apcb%3Aallegro%3Ano_zoom_to_object.png&ns=%E8%AE%BE%E8%AE%A1%3Apcb%3Aallegro&rev=1768285209&tab_details=history&mediado=diff&do=media <img src="https://www.hwwiki.net/lib/exe/fetch.php?w=484&h=500&t=1768285209&amp;tok=1d0273&amp;media=%E8%AE%BE%E8%AE%A1:pcb:allegro:no_zoom_to_object.png" alt="设计:pcb:allegro:no_zoom_to_object.png" />