Author Topic: DDR3 Strobe to data timing constrains  (Read 600 times)

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Offline ddr_controllerTopic starter

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DDR3 Strobe to data timing constrains
« on: February 08, 2023, 07:48:05 pm »
I don't see in the ddr3 docs from Micron where are the timing constraints between DQS and DQ. I read somewhere that DQ should center align to DQS but did not find where that is said in the Micron datasheet, nor did I find the allowed jitter. Does anyone know where this spec is?
 

Online BrianHG

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Re: DDR3 Strobe to data timing constrains
« Reply #1 on: February 08, 2023, 10:49:34 pm »
Read the full datasheet, it is there.  And it is also within a few pages of the DDR_CK/CK# to command tolerances.
 

Offline ddr_controllerTopic starter

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Re: DDR3 Strobe to data timing constrains
« Reply #2 on: February 09, 2023, 04:45:54 pm »
I really can´t find it, neither in the dc ac tables nor in the write section timing diagrams :/
 

Offline asmi

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Re: DDR3 Strobe to data timing constrains
« Reply #3 on: February 09, 2023, 05:34:15 pm »
I really can´t find it, neither in the dc ac tables nor in the write section timing diagrams :/
Maybe you should read again.
Read:


Write:


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