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DDRII+ VDD operating supply | Cypress Semiconductor

DDRII+ VDD operating supply

Summary: 1 Reply, Latest post by PRIT on 02 Apr 2015 04:20 PM PDT
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Nosss's picture
7 posts


In the datasheet 001-58912 Rev. *E  (for example) is written at page 20: "The operation current is calculated with 50% read cycle and 50% write cycle." Is this a worst case? And what about 100% read cycle or 100% write cycle?



prit's picture
Cypress Employee
59 posts

We mention the worst case current numbers in our datasheets. 50% reads and 50% writes operation gives the highest power consumption/current.


The current number for 100% reads or 100% writes will always be equal or lower than the mentioned current in the datasheet.

We perform 50% read and 50% write operation so max switching happens and we get the worst case current from it. 

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