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AM29BDS640G 数据表(PDF) 62 Page - SPANSION |
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AM29BDS640G 数据表(HTML) 62 Page - SPANSION |
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62 / 65 page ![]() 60 Am29BDS640G 25903C1 October 1, 2003 Prelimin ary AC Characteristics Notes: 1. PA = Program Address, PD = Program Data, VA = Valid Address for reading status bits. 2. “In progress” and “complete” refer to status of program operation. 3. A21–A12 are don’t care during command sequence unlock cycles. 4. The Asynchronous programming operation is independent of the Set Device Read Mode bit in the Burst Mode Configuration Register. Figure 22. Alternate Asynchronous Program Operation Timings OE# CE# Data Addresses AVD WE# CLK VCC 555h PD tAS tAVSW tAVHW tCHW tAH tWC tWPH PA tVCS tWP tDH tCH In Progress tWHWH1 VA Complete VA Program Command Sequence (last two cycles) Read Status Data tDS VIH VIL tAVDP A0h tCS |
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