Multisim and Ultiboard

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Dram Retention Time

Hi, my question is to design a circuit simulating DRAM operation that shows a retention time of 2 10-5 s and to estimate read/write time.

 

My current circuit is attached (not sure if it is correct). I also attached the oscilloscope graph, but I have no idea what that is showing me. 

 

Can someone please let me know if that is the right circuit for that problem, and how I can go about to find the retention time, and to estimate read/write time.

 

Thank you!

 

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Message 1 of 3
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Hi there,

 

It might be good to read some theory about it and know how they work and what you should expect on the readings

 

Here you can find a very good article about it.

 

After that you can look into this circuit and have an idea to create your own circuit as your needs

 

Hope it helps!

 

Regards

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how do you get the graph?

 

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