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International Electronics and Technology Forum > Digital Electronics > Combination Logic Circuits > 

when diode logic gates are cascaded, what problems occur?

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Author Topic: when diode logic gates are cascaded, what problems occur?  (Read 338 times)
yukari
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« on: July 04, 2011, 05:37:01 AM »
when diode logic gates are cascaded, what problems occur?
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billrussell42
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Posts: 212
« Reply #1 on: July 04, 2011, 05:51:52 AM »
Do you mean DTL, diode transistor logic?

No real problems, they have adequate fan-in and fan-out. They are a bit slow.

.
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GibsonEssGee
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Posts: 121
« Reply #2 on: July 04, 2011, 06:25:12 AM »
This has been answered already see http://answers.yahoo.com/question/index?qid=20090621092301AAjrcRs
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Randy
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« Reply #3 on: July 04, 2011, 06:59:28 AM »
propagation delay
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Steven
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« Reply #4 on: July 04, 2011, 07:33:06 AM »
Diode Logic (typically ORing functions) drop the voltage by the diode forward voltage drop.
As the voltage drops of the diodes add up, the signal level becomes reduced to a LOW logic level and is undiscernable.
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