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 I2C 8-SOIC ObsoleteClock/CalendarLeap Year
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HH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarLeap Year
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HH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarLeap Year
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HH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-TSSOP ObsoleteClock/Calendar
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HH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V
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1.2µA ~ 31µA @ 3V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
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STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/Calendar
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HH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V
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1.2µA ~ 31µA @ 3V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/Calendar
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HH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V
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1.2µA ~ 31µA @ 3V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, NVSRAM56BHH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarLeap Year, NVSRAM56BHH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 28-SOIC ObsoleteClock/CalendarLeap Year, NVSRAM56BHH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 28-SOIC ActiveClock/CalendarLeap Year, NVSRAM56BHH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V70µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 18-SOIC ObsoleteClock/CalendarEEPROM, Leap Year, NVSRAM56B, 8KBHH:MM:SSYY-MM-DD-ddI²C, 2-Wire Serial4.5 V ~ 5.5 V2.5 V ~ 3.5 V100µA (Typ) @ 4.5V ~ 5.5V-40°C ~ 85°CSurface Mount18-SOX, 18-SOIC with Crystal (7.5mm Width)18-SOX