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DS1746W-120IND+ Datasheet(PDF) 11 Page - Maxim Integrated Products |
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DS1746W-120IND+ Datasheet(HTML) 11 Page - Maxim Integrated Products |
11 / 16 page DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs 11 of 16 AC CHARACTERISTICS—WRITE CYCLE (5V) (VCC = 5.0V 10%, TA = Over the Operating Range.) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Write Cycle Time tWC 70 ns Address Setup Time tAS 0 ns WE Pulse Width tWEW 50 ns CE Pulse Width tCEW 60 ns Data Setup Time tDS 30 ns Data Hold Time tDH1 0 ns 8 Data Hold Time tDH2 0 ns 9 WE Data Off Time tWEZ 25 ns Write Recovery Time tWR1 5 ns 8 Write Recovery Time tWR2 5 ns 9 AC CHARACTERISTICS—WRITE CYCLE (3.3V) (VCC = 3.3V 10%, TA = Over the Operating Range.) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Write Cycle Time tWC 120 ns Address Setup Time tAS 0 120 ns WE Pulse Width tWEW 100 ns CE Pulse Width tCEW 110 ns CE and CE2 Pulse Width tCEW 110 ns Data Setup Time tDS 80 ns Data Hold Time tDH1 0 ns 8 Data Hold Time tDH2 0 ns 9 WE Data Off Time tWEZ 40 ns Write Recovery Time tWR1 5 ns 8 Write Recovery Time tWR2 10 ns 9 |
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