Part Number Manufacturer / Brand Brife Description Part StatusTypeFeaturesMemory SizeTime FormatDate FormatInterfaceVoltage - SupplyVoltage - Supply, BatteryCurrent - Timekeeping (Max)Operating TemperatureMounting TypePackage / CaseSupplier Device Package
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-UMAX ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.71 V ~ 5.5 V1.3 V ~ 3.7 V200µA @ 1.71V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
Maxim Integrated IC RTC CLOCK/CALENDAR SER 8-SOIC ActiveClock/CalendarLeap Year, NVSRAM, Trickle-Charger31BHH:MM:SS (12/24 hr)YY-MM-DD-dd3-Wire Serial2 V ~ 5.5 V2 V ~ 5.5 V0.3µA ~ 1µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.209", 5.30mm Width)8-SO
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-DIP ActiveClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial4.5 V ~ 5.5 V2 V ~ 3.5 V200µA @ 5V-40°C ~ 85°CThrough Hole8-DIP (0.300", 7.62mm)8-PDIP
EPSON IC RTC CLOCK/CALENDAR I2C 12-VSOJ ActiveClock/CalendarAlarm
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YY-MM-DDI²C, 2-Wire Serial1.6 V ~ 5.5 V
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2.1µA ~ 3.4µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount12-TFSOJ (0.094", 2.40mm Width)12-VSOJ
Maxim Integrated IC RTC CLOCK/CALENDAR SPI 20-TSSOP ActiveClock/CalendarAlarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI3 V ~ 5.5 V1.3 V ~ 5.5 V120µA ~ 160µA @ 3.63V ~ 5.5V-40°C ~ 85°CSurface Mount20-TSSOP (0.173", 4.40mm Width)20-TSSOP
EPSON IC RTC CLOCK/CALENDAR SPI 14-SOP ActiveClock/CalendarAlarm, Leap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddSPI1.6 V ~ 5.5 V
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2.1µA ~ 3.4µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount14-SOIC (0.209", 5.30mm Width)14-SOP
EPSON IC RTC CLOCK/CALENDAR PAR 24-SOP ActiveClock/CalendarLeap Year
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HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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5µA ~ 10µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount24-SOIC (0.311", 7.90mm Width)24-SOP
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarLeap Year, Trickle-Charger
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HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.97 V ~ 5.5 V1.3 V ~ 5.5 V150µA @ 5.5V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
EPSON IC RTC CLOCK/CALENDAR I2C 12-VSOJ ActiveClock/CalendarAlarm
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YY-MM-DDI²C, 2-Wire Serial1.6 V ~ 5.5 V
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2.1µA ~ 3.4µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount12-TFSOJ (0.094", 2.40mm Width)12-VSOJ
Maxim Integrated IC RTC CLOCK/CALENDAR SPI 16-DIP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V0°C ~ 70°CThrough Hole16-DIP (0.300", 7.62mm)16-PDIP
EPSON IC RTC CLOCK/CALENDAR PAR 24-SSOP ActiveClock/CalendarAlarm, Leap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel2.4 V ~ 5.5 V
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1µA ~ 2µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount24-SOP (0.213", 5.40mm Width)24-SSOP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-SOIC ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K256BHH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V2.5 V ~ 3.7 V4mA @ 3V ~ 3.6V-40°C ~ 85°CSurface Mount28-SOIC (0.295", 7.50mm Width)28-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-SOIC ActiveClock/CalendarAlarm, NVSRAM, Square Wave Output, Y2K242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 5V0°C ~ 70°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR SPI 16-DIP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V-40°C ~ 85°CThrough Hole16-DIP (0.300", 7.62mm)16-PDIP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-SOIC ActiveClock/CalendarAlarm, NVSRAM, Square Wave Output, Y2K242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 5V-40°C ~ 85°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-TSSOP ActiveClock/CalendarAlarm, NVSRAM, Square Wave Output, Y2K242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.7 V2.5 V ~ 3.7 V2mA @ 3V-40°C ~ 85°CSurface Mount24-TSSOP (0.173", 4.40mm Width)24-TSSOP
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.3 V ~ 5.5 V2.3 V ~ 5.5 V130µA ~ 200µA @ 3.63V ~ 5.5V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 20-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal236BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.3 V ~ 5.5 V2.3 V ~ 5.5 V120µA ~ 160µA @ 3.3V ~ 5.5V0°C ~ 70°CSurface Mount20-SOIC (0.295", 7.50mm Width)20-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR SPI 20-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer32BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI3 V ~ 6 V2.2 V ~ 6 V20µA ~ 500µA @ 5V-40°C ~ 85°CSurface Mount20-SOIC (0.295", 7.50mm Width)20-SOIC
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 24-DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 VIntegrated70µA @ 2.7V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP (0.600", 15.24mm)24-PCDIP, CAPHAT®
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
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3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ActiveClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output2KBHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
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3mA @ 4.75V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
Maxim Integrated IC RTC PHANTOM PAR 16-SOIC ActivePhantom Time ChipLeap Year
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V1.3mA @ 5V0°C ~ 70°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K256BHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V5mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ActiveClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ActiveClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
Maxim Integrated IC RTC PHANTOM PAR 34-PCM ActivePhantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V10mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
Maxim Integrated IC RTC PHANTOM PAR 32-DIP ActivePhantom Time ChipLeap Year, NVSRAM512KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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10mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
NXP USA Inc. IC RTC CLOCK/CALENDAR I2C 10-SON ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial0.9 V ~ 5.5 V
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0.6µA @ 3.3V-40°C ~ 85°CSurface Mount10-XFDFN Exposed Pad10-DFN (2.6x2.6)
NXP USA Inc. IC RTC CLOCK/CALENDAR I2C 8SO ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial0.9 V ~ 5.5 V0.9 V ~ 5.5 V0.885µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
NXP USA Inc. IC RTC CLOCK/CALENDAR I2C 10TSSOP ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial0.9 V ~ 5.5 V0.9 V ~ 5.5 V0.885µA @ 3.3V-40°C ~ 85°CSurface Mount10-TFSOP, 10-MSOP (0.118", 3.00mm Width)10-TSSOP
NXP USA Inc. IC RTC CLOCK/CALENDAR I2C 8TSSOP ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer64BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial0.9 V ~ 5.5 V0.9 V ~ 5.5 V0.885µA @ 3.3V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-TSSOP
NXP USA Inc. IC RTCC I2C/ALARM 8TSSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial0.9 V ~ 5.5 V
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1.8µA @ 5V-40°C ~ 105°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-TSSOP
Diodes Incorporated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.3 V ~ 5.5 V
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0.65µA ~ 0.7µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Diodes Incorporated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarLeap Year, Square Wave Output, Y2K56BHH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.2 V ~ 5.5 V2 V ~ 5.5 V70µA @ 1.5V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
IDT, Integrated Device Technology Inc IC RTC CLOCK/CALENDAR I2C 8-MSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial3.3 V ~ 5.5 V1.3 V ~ 3.7 V200µA @ 3.63V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-TSSOP
STMicroelectronics IC RTC CLOCK/CALENDAR SPI 16-QFN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI2.7 V ~ 5.5 V1.8 V ~ 5.5 V10µA @ 5.5V-40°C ~ 85°CSurface Mount16-VQFN Exposed Pad16-QFN (4x4)
Microchip Technology IC RTC CLOCK/CALENDAR SPI 14-SOIC ActiveClock/CalendarAlarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer64BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddSPI1.8 V ~ 3.6 V1.3 V ~ 3.6 V1µA @ 1.8V ~ 5.5V-40°C ~ 85°CSurface Mount14-SOIC (0.154", 3.90mm Width)14-SOIC
Microchip Technology IC RTC CLOCK/CALENDAR SPI 14-SOIC ActiveClock/CalendarAlarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer64BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddSPI1.8 V ~ 3.6 V1.3 V ~ 3.6 V1µA @ 1.8V ~ 5.5V-40°C ~ 85°CSurface Mount14-SOIC (0.154", 3.90mm Width)14-SOIC
Microchip Technology IC RTC CLOCK/CALENDAR SPI 14-TSSOP ActiveClock/CalendarAlarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer64BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddSPI1.8 V ~ 3.6 V1.3 V ~ 3.6 V1µA @ 1.8V ~ 5.5V-40°C ~ 85°CSurface Mount14-TSSOP (0.173", 4.40mm Width)14-TSSOP
Microchip Technology IC RTC CLOCK/CALENDAR SPI 14-TSSOP ActiveClock/CalendarAlarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer64BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddSPI1.8 V ~ 3.6 V1.3 V ~ 3.6 V1µA @ 1.8V ~ 5.5V-40°C ~ 85°CSurface Mount14-TSSOP (0.173", 4.40mm Width)14-TSSOP
Microchip Technology IC RTC CLOCK/CALENDAR SPI 14-SOIC ActiveClock/CalendarAlarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer64BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddSPI1.8 V ~ 3.6 V1.3 V ~ 3.6 V1µA @ 1.8V ~ 5.5V-40°C ~ 85°CSurface Mount14-SOIC (0.154", 3.90mm Width)14-SOIC
NJR Corporation/NJRC IC RTC CLOCK/CALENDAR SER 8-EMP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-dd4-Wire Serial4.5 V ~ 5.5 V
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4µA ~ 15µA @ 2V ~ 5V-30°C ~ 80°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-EMP
EPSON IC RTC CLOCK/CALENDAR SER 14-SOP ActiveClock/CalendarAlarm, Leap Year
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HH:MM:SS (24 hr)YY-MM-DD-dd3-Wire Serial1.6 V ~ 5.5 V
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0.95µA ~ 1µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount14-SOIC (0.209", 5.30mm Width)14-SOP
NXP USA Inc. IC RTC CLOCK/CAL I2C/SPI 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 4.2 V1.8 V ~ 4.2 V1.5µA @ 3.3V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SO
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/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 ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
EPSON IC RTC CLOCK/CALENDAR I2C 14-SOP ActiveClock/CalendarAlarm
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YY-MM-DDI²C, 2-Wire Serial1.6 V ~ 5.5 V
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2.1µA ~ 3.4µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount14-SOIC (0.197", 5.00mm Width)14-SOP
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