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請教測試c4004的方法

 
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guest



Joined: 23 Nov 2005
Posts: 16

PostPosted: Fri May 22, 2009 11:45 pm    Post subject: 請教測試c4004的方法 Reply with quote

請問有人可以教我怎么用數字萬能表測試c4004嗎?

測試它是否原裝

thank u very much.
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lither



Joined: 11 Oct 2006
Posts: 70

PostPosted: Mon May 25, 2009 8:04 am    Post subject: Re: 請教測試c4004的方法 Reply with quote

guest wrote:
請問有人可以教我怎么用數字萬能表測試c4004嗎?

測試它是否原裝

thank u very much.

“理論上“所有的 4004 的電氣特性應該是一樣的
所以 C4004 , P4004, D4004 測起來應該是一樣的
如果你有確定是“真品“ p4004 和 D4004
你可以先用三用電表測任二支腳的電阻 (例如 pin1 , pin10 等等)
如果你的 c4004 和 p4004 測起來相似,那麼真品的機會就會很高
但是只是機會很高
最直接的証據是用電路去測
最簡單的電路要一棵 4004 , 一棵 4001,一棵 4201
幾個 switch,電路要自己想,
而且 4001 裏要先寫入一些程式,有點麻煩

但是其實網路上有人可以幫忙測,
cpu-world 上知名的德籍收藏家 wepwawet 曾經提過這種服務,
http://www.cpu-world.com/forum/viewtopic.php?t=6633&highlight=4004+4040+test
不過測的時候最大的問題是針腳會不會損傷,如果你有打算要測,
我想你可能要先用有一種轉換的腳座來保護針腳…
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