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实时时钟电路图
2009-5-11 10:26
- 电路赏析
- 4
- 2798
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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时钟IC那些比较长用的
2009-2-10 21:11
- 电子技术交流论坛
- 5
- 2583
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求教1M-50M时钟产生方法
2014-1-28 11:09
- 电子技术交流论坛
- 28
- 6008
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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楼上请把**仔细看完,不对TL0赋值是我比较自豪的地方。
2013-11-13 15:16
- 侃单片机论坛
- 55
- 12878
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国产单片机的推广者,请给出Datasheet下载地址
2008-10-22 14:55
- 侃单片机论坛
- 35
- 5410
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
ds12887一奇怪现像!
2008-3-5 22:19
- 工控、机电一体化
- 3
- 2433
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
DS12887与89C51制作时钟
2008-2-22 19:04
- 侃单片机论坛
- 6
- 3242
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请推荐 IC : 用做闹钟时钟芯片
2008-2-22 21:33
- 电子技术交流论坛
- 4
- 2612
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
自动功能的仪表国内有研制的吗?
2008-3-27 15:42
- 仪器仪表
- 6
- 2726
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
这样设计的时钟,是多久中断一次?初学!谢谢了!
2008-2-17 11:26
- 飞思卡尔 单片机
- 5
- 2289
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
如何将500MHz时钟信号分频到50MHz以内,谈谈你的看法
2008-2-25 21:43
- 仪器仪表
- 9
- 5423
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
单片机实现时钟电路的硬件电路图如何设计最简单?
2008-2-16 15:57
- 电路赏析
- 5
- 4189
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
如何分析这个计时器电路原理?(图)
2008-4-19 00:33
- 电路赏析
- 4
- 2541
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
有谁了解钟振里的IC及供货商
2008-2-16 23:14
- 通信技术
- 4
- 2024
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
各位同仁,大家一起来交流交流时钟芯片的精度问题?
2008-2-16 15:45
- 电子技术交流论坛
- 11
- 4095
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请大侠推荐一款c8051
2008-1-22 15:52
- 侃单片机论坛
- 4
- 2247
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
急求高速光耦PS8701的替代产品,不要日本货!!!
2008-4-1 21:35
- IC产业论坛
- 11
- 2180
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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请求帮助
2008-2-16 15:54
- 电路赏析
- 1
- 1673
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