Part Number Manufacturer / Brand Brife Description Part StatusTypeFeaturesMemory SizeTime FormatDate FormatInterfaceVoltage - SupplyVoltage - Supply, BatteryCurrent - Timekeeping (Max)Operating TemperatureMounting TypePackage / CaseSupplier Device Package
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V3V2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ObsoleteClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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2mA @ 3V ~ 3.6V-40°C ~ 85°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH