Part Number Manufacturer / Brand Brife Description Part StatusTypeFeaturesMemory SizeTime FormatDate FormatInterfaceVoltage - SupplyVoltage - Supply, BatteryCurrent - Timekeeping (Max)Operating TemperatureMounting TypePackage / CaseSupplier Device Package
Diodes Incorporated IC RTC CLOCK/CALENDAR I2C MSOP ActiveClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.5 V ~ 3.7 V125µA @ 2.7V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
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
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-DIP ActiveClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output4KBHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.7 V2.5 V ~ 3.7 V2mA @ 2.7V ~ 3.7V0°C ~ 70°CThrough Hole24-DIP (0.600", 15.24mm)24-PDIP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ActiveClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V2mA @ 3.3V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-TDFN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-WFDFN Exposed Pad8-TDFN (2x3)
Rohm Semiconductor IC RTC CLOCK/CALENDAR I2C 8TSSOP ActiveClock/CalendarAlarm, Leap Year
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
1µA ~ 1.35µA @ 3V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP (0.173", 4.40mm Width)8-TSSOP-B
Rohm Semiconductor IC RTC CLOCK/CALENDAR I2C 8SOP ActiveClock/CalendarAlarm, Leap Year
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
1µA ~ 1.35µA @ 3V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.173", 4.40mm Width)8-SOP
Diodes Incorporated IC RTC CLOCK/CALENDAR I2C ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.8µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
NXP USA Inc. IC RTC CLOCK/CALENDAR I2C 14-TSSOP ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.6 V ~ 5.5 V1.8 V ~ 5.5 V0.5µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount14-TSSOP (0.173", 4.40mm Width)14-TSSOP
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 6-TDFN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output16BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.7 V ~ 5.5 V
-
0.5µA @ 1.7V ~ 5.5V-40°C ~ 85°CSurface Mount6-WDFN Exposed Pad6-TDFN-EP (3x3)
ABLIC U.S.A. Inc. IC RTC CLOCK/CALENDAR I2C SNT-8A ActiveClock/CalendarAlarm, Leap Year
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.3 V ~ 5.5 V
-
14µA ~ 30µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-SMD, Flat LeadSNT-8A
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
EPSON IC TRC CLOCK/CALENDAR ActiveTime Event RecorderAlarm, Leap Year
-
HH:MM:SS (24 hr)YY-MM-DDI²C, 2-Wire Serial1.6 V ~ 5.5 V1.1 V ~ 5.5 V
-
-40°C ~ 85°CSurface Mount10-SMD ModuleModule
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
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 16-QFN ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.3 V ~ 4.4 V
-
0.7µA ~ 0.95µA @ 3.6V ~ 4.4V-40°C ~ 85°CSurface Mount16-VFQFN Exposed Pad16-QFN (3x3)
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-MSOP ActiveClock/CalendarAlarm, Leap Year
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 3.6 V
-
0.65µA @ 1.8V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 3.6 V
-
0.65µA @ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer
-
HH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2 V ~ 5.5 V2.5 V ~ 3.5 V100µA @ 2V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SO
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 16-QFN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.38 V ~ 5.5 V2 V ~ 5.5 V10µA @ 5.5V-40°C ~ 85°CSurface Mount16-VQFN Exposed Pad16-QFN (4x4)
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, SRAM2BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V4µA ~ 6µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
EPSON IC RTC CLOCK/CALENDAR I2C 14-SOP ActiveClock/CalendarAlarm
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.5 V ~ 5.5 V1.6 V ~ 5.5 V1.35µA ~ 1.45µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount14-SOIC (0.209", 5.30mm Width)14-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, SRAM8BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V4µA ~ 6µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-MSOP ActiveClock/CalendarAlarm, Leap Year, SRAM8BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V4µA ~ 6µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
Maxim Integrated IC RTC ELAPSED CNT PAR 24-TSSOP ActiveElapsed Time CounterAlarm, Square Wave Output
-
BinaryBinaryParallel3 V ~ 3.6 V1.6 V ~ 3.7 V150µA @ 3V ~ 3.6V-40°C ~ 85°CSurface Mount24-TSSOP (0.173", 4.40mm Width)24-TSSOP
EPSON IC RTC CLOCK/CALENDAR SPI 22-SON ActiveClock/CalendarAlarm, Leap Year
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddSPI1.7 V ~ 5.5 V
-
1.2µA ~ 1.8µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount22-LFDFN22-SON (5x6)
Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-DIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output114BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 4 V
-
0°C ~ 70°CThrough Hole24-DIP (0.600", 15.24mm)24-PDIP
Diodes Incorporated IC RTC CLOCK/CALENDAR I2C ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.8µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
STMicroelectronics IC RTC PHANTOM SER 28-SOIC ObsoletePhantom Time ChipLeap Year, Supervisor
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddSerial3 V ~ 3.6 V2.5 V ~ 3.7 V2mA @ 2.7V ~ 3.6V-40°C ~ 85°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
-
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 PAR 32-TSOP ObsoleteClock/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 ~ 5.5V-40°C ~ 85°CSurface Mount32-LFSOP (0.724", 18.40mm Width)32-TSOP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V2mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V3mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K2KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V3mA @ 5V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 18-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer
-
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 Mount18-SOX, 18-SOIC with Crystal (7.5mm Width)18-SOX
EPSON IC RTC CLOCK/CALENDAR I2C 10-SMD ActiveClock/CalendarAlarm
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.5 V ~ 5.5 V1.6 V ~ 5.5 V1.35µA ~ 1.45µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount10-SMD, No Lead10-SMD
STMicroelectronics IC RTC CLOCK/CALENDAR I2C 20-SSOP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer128BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 3.6 V2.5 V ~ 3.6 V0.5mA @ 2.7V ~ 3.6V-40°C ~ 85°CSurface Mount20-SSOP (0.209", 5.30mm Width)20-SSOP
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Daylight Savings, Leap Year, SRAM128BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V14µA ~ 15µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Renesas Electronics America Inc. IC RTC CLOCK/CALENDAR I2C 20-DFN ActiveClock/CalendarAlarm, Daylight Savings, Leap Year, SRAM128BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.8 V ~ 5.5 V14µA ~ 15µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount20-PowerLFDFN20-DFN (5.5x4.0)
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28-DIP ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year, Watchdog Timer
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
-
3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ActiveClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V-40°C ~ 85°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
NXP USA Inc. IC RTC CLOCK/CALENDAR I2C 10-HVSON ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.6µA ~ 0.75µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount10-VFDFN Exposed Pad10-HVSON (3x3)
STMicroelectronics IC RTC CLOCK/CALENDAR SPI 18-SOX ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI3 V ~ 5.5 V1.8 V ~ 5.5 V10µA @ 5.5V-40°C ~ 85°CSurface Mount18-SOX, 18-SOIC with Crystal (7.5mm Width)18-SOX
Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
-
HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Maxim Integrated IC RTC ELAPSED CNT I2C 8-SOIC ActiveElapsed Time CounterAlarm, EEPROM16BBinaryBinaryI²C, 2-Wire Serial2.5 V ~ 5.5 V
-
-
-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
Maxim Integrated IC RTC CLOCK/CALENDAR SPI 16-DIP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, 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
Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA (Typ) @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
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
  1. 6
  2. 7
  3. 8
  4. 9
  5. 10
  6. 11
  7. 12
  8. 13
  9. 14
  10. 15