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1. AC measurements assume tT = 2 ns. 2. An initial pause of 200us is required after power followed by a minimum of eight initializa- tion cycles (any combination ofcycles containing RAS-only refresh or CAS-before-RAS refresh). 3. Operation with the tRCD(max) limit insures that tRAC(max) can be met, tRCD(max) is specified as a reference point only; iftRCD is greater than the specified tRCD (max) limit, then access time is controlled exclusively by tCAC. 4. Operation with the tRAD(max)limit insures that tRAC(max) can be met, tRAD(max) is specified as a reference point only; iftRAD is greater than the specified tRAD (max) limit, then access time is controlled exclusively by tAA. 5. Either tODD or tCDD must be satisfied. 6. Either tDZO or tDZC must be satisfied. 7. VIH (min) and VIL (max) are reference levels for measuring timing ofinput signals. Also, transition times are measured between VIH (min) and VIL (max).
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