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AM29BDS640GBD3WSI 데이터시트(PDF) 63 Page - SPANSION |
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AM29BDS640GBD3WSI 데이터시트(HTML) 63 Page - SPANSION |
63 / 65 page October 1, 2003 25903C1 Am29BDS640G 61 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. Addresses are latched on the first of either the rising edge of AVD# or the active edge of CLK. 5. Either CS# or AVD# is required to go from low to high in between programming command sequences. 6. The Synchronous programming operation is independent of the Set Device Read Mode bit in the Burst Mode Configuration Register. 7. CLK must not have an active edge while WE# is at VIL. 8. AVD# must toggle during command sequence unlock cycles. Figure 23. Synchronous Program Operation Timings OE# CE# Data Addresses AVD WE# CLK VCC 555h PD tAS tWP tAH tWC tWPH PA tVCS tDH tCH In Progress tWHWH1 VA Complete VA Program Command Sequence (last two cycles) Read Status Data tDS tAVDP A0h tAVSW tACS tCAS tCSW2 |
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