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[ DS90UH926 ] tROS & tROH Specification

Kenichiro
Mastermind 9165 points
Other Parts Discussed in Thread: DS90C124
Hi expert,
Would you please give me your comment for following discussion?
DS90UH926 datasheet specify the tROS and tROH (Setup and hold time) as below.
From this specification, the setup and hold time are constant value, even though PCLK is different.
On the other hand, other device such as DS90C124 use different manner and its relative to PCLK.
(Here, tRCP is cycle time of PCLK)
My customer may use lower PCLK than 85MHz.
For this case, any possibility to specify the tROS and tROH of DS90UH926 with a manner like  DS90C124?
Thank you for your support in advance.
Regards,
Ken