Part Number Manufacturer / Brand Brife Description Part StatusTypeFeaturesMemory SizeTime FormatDate FormatInterfaceVoltage - SupplyVoltage - Supply, BatteryCurrent - Timekeeping (Max)Operating TemperatureMounting TypePackage / CaseSupplier Device Package
Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-QSOP ObsoleteClock/CalendarAlarm, Daylight Savings, NVSRAM242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 5.5 V2.4 V ~ 4 V100µA @ 3V0°C ~ 70°CSurface Mount24-SSOP (0.154", 3.90mm Width)24-SSOP/QSOP
Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-QSOP ObsoleteClock/CalendarAlarm, Daylight Savings, NVSRAM242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 5.5 V2.4 V ~ 4 V100µA @ 3V0°C ~ 70°CSurface Mount24-SSOP (0.154", 3.90mm Width)24-SSOP/QSOP
Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-QSOP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 5.5 V2.4 V ~ 4 V100µA @ 3V0°C ~ 70°CSurface Mount24-SSOP (0.154", 3.90mm Width)24-SSOP/QSOP
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V2 V ~ 3.5 V70µA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer
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HH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V2 V ~ 3.5 V100µA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer
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HH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V2 V ~ 3.5 V100µA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V2 V ~ 5.5 V10µA @ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 18-SOX ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V2 V ~ 5.5 V10µA @ 5.5V-40°C ~ 85°CSurface Mount18-SOX, 18-SOIC with Crystal (7.5mm Width)18-SOX
STMicroelectronics IC RTC CLOCK/CAL I2C 16-VFQFPN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V2 V ~ 5.5 V10µA @ 5.5V-40°C ~ 85°CSurface Mount16-VQFN Exposed Pad16-QFN (4x4)
STMicroelectronics IC RTC CLOCK/CALENDAR SPI 28-SOIC ObsoleteClock/CalendarAlarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer44BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI2.7 V ~ 5.5 V2.5 V ~ 3.5 V1.4mA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR SPI 28-SOIC ActiveClock/CalendarAlarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer44BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI2.7 V ~ 5.5 V2.5 V ~ 3.5 V1.4mA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
STMicroelectronics IC RTC CLOCK/CALENDAR SPI 16-SOIC ObsoleteClock/CalendarAlarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer44BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI2.7 V ~ 5.5 V2.5 V ~ 3.5 V1.4mA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount16-SOIC (0.154", 3.90mm Width)16-SO
STMicroelectronics IC RTC CLOCK/CALENDAR SPI 16-SOIC ActiveClock/CalendarAlarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer44BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI2.7 V ~ 5.5 V2.5 V ~ 3.5 V1.4mA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount16-SOIC (0.154", 3.90mm Width)16-SO
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V10µA ~ 20µA @ 2.7V ~ 5V0°C ~ 70°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V10µA ~ 20µA @ 2.7V ~ 5V0°C ~ 70°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year, Supervisor, Watchdog Timer
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V10µA ~ 20µA @ 2.7V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year, Supervisor, Watchdog Timer
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V10µA ~ 20µA @ 2.7V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
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