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DS2016 数据表(PDF) 5 Page - Dallas Semiconductor |
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DS2016 数据表(HTML) 5 Page - Dallas Semiconductor |
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5 / 9 page ![]() DS2016 5 of 9 AC CHARACTERISTICS WRITE CYCLE (TA = -40°C to +85°C; VCC = 2.7V to 3.5V) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Write Cycle Time tWC 250 ns Write Pulse Width tWP 190 ns Address Setup Time tAW 0 ns Write Recovery Time tWR 25 ns Output High-Z from WE tODW 90 ns Output Active from WE tOEW 5 ns Data Setup Time tDS 100 ns Data Hold Time tDH 0 ns DATA RETENTION CHARACTERISTICS (TA = -40°C to +85°C) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Data Retention Supply Voltage VDR CE ≥ V CC - 0.3V 2.0 3.5 V Data Retention Current at 3.5V ICCR1 CE ≥ V CC - 0.3V 50* 1000 nA Data Retention Current at 2.0V ICCR2 CE ≥ V CC - 0.3V 50* 750 nA Chip Deselect to Data Retention tCDR 0 µs Recovery Time tR 2 ms * Typical values are at 25°C TIMING DIAGRAM: READ CYCLE SEE NOTE 1 |
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