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DS1501 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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DS1501 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 22 page DS1501/DS1511 Y2KC Watchdog Real-Time Clocks 3 of 22 DC ELECTRICAL CHARACTERISTICS (VCC = 0V; TA = 0°C to +70°C; VCC = 0V, TA = -40°C to +85°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Battery Current, BB32 = 0, EOSC = 0 IBAT1 (Note 7) 0.27 1.0 μA Battery Current, BB32 = 0, EOSC = 1 IBAT2 (Note 7) 0.01 0.1 μA VBAUX Current BB32 = 1, SQW Open IBAUX (Note 7) 2 μA CRYSTAL SPECIFICATIONS* PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Nominal Frequency fO 32.768 kHz Series Resistance ESR 45 k Ω Load Capacitance CL 6/12.5 pF *The crystal, traces, and crystal input pins should be isolated from RF generating signals. Refer to Application Note 58: Crystal Considerations for Dallas Real-Time Clocks for additional specifications. AC OPERATING CHARACTERISTICS (VCC = 5V ±10%, TA = 0°C to +70°C; VCC = 5V ±10%, TA = -40°C to +85°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Read Cycle Time tRC 70 ns Address Access Time tAA 70 ns CE to DQ Low-Z tCEL (Note 8) 5 ns CE Access Time tCEA 70 ns CE Data-Off Time tCEZ (Note 8) 25 ns OE to DQ Low-Z (0°C to +85°C) tOEL (Note 8) 5 ns OE to DQ Low-Z (-40°C to 0°C) tOEL (Note 8) 2 ns OE Access Time tOEA 35 ns OE Data-Off Time tOEZ (Note 8) 25 ns Output Hold from Address tOH 5 ns Write Cycle Time tWC 70 ns Address Setup Time tAS 0 ns WE Pulse Width tWEW 50 ns CE Pulse Width tCEW 55 ns Data Setup Time tDS 30 ns Data Hold Time tDH 5 ns Address Hold Time tAH 0 ns WE Data-Off Time tWEZ (Note 8) 25 ns Write Recovery Time tWR 15 ns Pulse Width, OE, WE, or CE High PWHIGH 20 ns Pulse Width, OE, WE, or CE Low PWLOW 70 ns |
Similar Part No. - DS1501_09 |
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Similar Description - DS1501_09 |
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