K4H561638F-TCCC specification equivalent, 256mb f-die ddr400 sdram specification.
* 200MHz Clock, 400Mbps data rate.
* VDD= +2.6V + 0.10V, VDDQ= +2.6V + 0.10V
* Double-data-rate architecture; two data transfers per clock cycle
* Bidirec.
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