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很全的常用元件尺寸封装资料下载
2015-12-22 17:46
- PCB技术
- 91
- 12356
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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线宽与电流 请下载保存
2024-6-25 16:59
- PCB技术
- 316
- 43815
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
~~~protel99里能不能在sch中选中一些元件,PCB里会发亮显示
2011-8-19 12:19
- PCB技术
- 19
- 8495
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
给大家一个我认为挺好的PDF
2011-2-14 10:02
- PCB技术
- 192
- 25903
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
protel99se和altium designer哪个更适合?
2017-12-14 19:17
- PCB技术
- 20
- 19516
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
ALTIUM DESIGNER
2011-1-7 16:17
- PCB技术
- 23
- 4383
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
PCB学习资料大派送
2012-11-10 09:46
- PCB技术
- 102
- 13142
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
部分章节下载--推荐好书《高速电路设计实践》
2013-8-10 19:57
- PCB技术
- 58
- 10073
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
蛇型曲线的作用
2011-4-17 23:16
- PCB技术
- 43
- 7504
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
当今白领的要求,看完我成农民。
2011-1-13 21:35
- 电子技术交流论坛
- 58
- 9694
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
Altium designer原厂中文培训资料
2024-6-10 09:45
- PCB技术
- 1071
- 107188
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
上传几本书 图灵系列
2013-8-22 17:37
- 电子技术交流论坛
- 147
- 23100
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
〓◆ 电子设计指南 668页 41.7M ◆〓 清晰 重整书签版
2020-3-28 09:29
- 电子技术交流论坛
- 112
- 18944
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
程控放大器PGA204 205问题
2011-1-7 23:05
- 德州仪器MCU
- 4
- 1897
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
从人生的视角“调戏”linux内核(调度)!!!
2011-2-22 21:15
- 嵌入式操作系统论坛
- 9
- 3130
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
欢迎加入我的<USB专区>小组
2015-11-13 10:20
- USB技术专区
- 47
- 14215
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请教如何申明枚举类型为全局变量
2011-1-22 00:13
- 侃单片机论坛
- 22
- 17168
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
越来越觉得21IC上某些电子工程师的素质真是低的可以
2011-1-19 18:57
- 模拟技术论坛
- 20
- 4312
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
芯唐NuMicro Family ARM Cortex-M0 32位MCU进阶培训(南京站)
2011-1-12 23:29
- 万利电子
- 9
- 3290
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
keil(也就是鸟RVMD)比起IAR来真不是差了一点半点。
2013-11-11 08:23
- ST MCU
- 54
- 17891
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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2
3
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