[SI-LIST] Ac threshold timings

  • From: Arjun Krishna <kalyan.krishnan02@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Wed, 15 Apr 2015 09:12:28 -0700

Hi Experts
Here's my question.
In ddr3 simulation I have come across AC175, AC150 & AC135.

I have confused, How these threshold can be chosen how the designers
consider these spec. and when to apply. Is there any standard specified.

How the derating values are are considered,
Means my slew rate measurement is 4.9v/ns sec but the max specified is
2v/ns. Which value I should as the base value.

I'm. awaiting for your replies

Krishna.


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