Product Index > Integrated Circuits (ICs) > Clock/Timing - Real Time Clocks

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Manufacturer Packaging Series Part Status Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Package / Case Supplier Device Package
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Compare Parts Datasheets Image Digi-Key Part Number Manufacturer Part Number Manufacturer Description Quantity Available
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Packaging Series Part Status Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Package / Case Supplier Device Package
   
RX-4045NB:AA3 Datasheet RX-4045NB:AA3 - EPSON SER3769DKR-ND IC RTC CLK/CALENDAR SPI 22-SON 1,228 - Immediate
Digi-Reel® 1 Digi-Reel®?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year
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HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI 1.7 V ~ 5.5 V
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1.2µA ~ 1.8µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount 22-LFDFN 22-SON (5x6)
DS1302Z+ Datasheet DS1302Z+ - Maxim Integrated DS1302Z+-ND IC RTC CLK/CALENDAR SER 8-SOIC 3,660 - Immediate
3.28000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, NVSRAM, Trickle-Charger 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 2 V ~ 5.5 V 2 V ~ 5.5 V 0.3µA ~ 1µA @ 2V ~ 5V 0°C ~ 70°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
M41T94MH6F Datasheet M41T94MH6F - STMicroelectronics 497-5372-2-ND IC RTC CLK/CALENDAR SPI 28-SOIC 1,872 - Immediate
3.33993 936 Tape & Reel (TR)?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer 44B HH:MM:SS:hh (24 hr) YY-MM-DD-dd SPI 2.7 V ~ 5.5 V 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 5.5V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH
M41T94MH6F Datasheet M41T94MH6F - STMicroelectronics 497-5372-1-ND IC RTC CLK/CALENDAR SPI 28-SOIC 2,224 - Immediate
5.49000 1 Cut Tape (CT)?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer 44B HH:MM:SS:hh (24 hr) YY-MM-DD-dd SPI 2.7 V ~ 5.5 V 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 5.5V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH
M41T94MH6F Datasheet M41T94MH6F - STMicroelectronics 497-5372-6-ND IC RTC CLK/CALENDAR SPI 28-SOIC 2,224 - Immediate
Digi-Reel® 1 Digi-Reel®?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer 44B HH:MM:SS:hh (24 hr) YY-MM-DD-dd SPI 2.7 V ~ 5.5 V 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 5.5V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH
DS1391U-33+ Datasheet DS1391U-33+ - Maxim Integrated DS1391U-33+-ND IC RTC CLK/CALENDAR SPI 10-USOP 9,807 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 2.97 V ~ 5.5 V 1.3 V ~ 5.5 V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-uMAX
DS1307+ Datasheet DS1307+ - Maxim Integrated DS1307+-ND IC RTC CLK/CALENDAR I2C 8-DIP 5,291 - Immediate
5,800 - Factory Stock
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3.37000 1 Tube?
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Active Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 4.5 V ~ 5.5 V 2 V ~ 3.5 V 200µA @ 5V 0°C ~ 70°C Through Hole 8-DIP (0.300", 7.62mm) 8-PDIP
DS1338Z-33+ Datasheet DS1338Z-33+ - Maxim Integrated DS1338Z-33+-ND IC RTC CLK/CALENDAR I2C 8-SOIC 4,140 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 3 V ~ 5.5 V 1.3 V ~ 3.7 V 125µA ~ 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
DS1394U-33+ Datasheet DS1394U-33+ - Maxim Integrated DS1394U-33+-ND IC RTC CLK/CALENDAR SPI 10-MSOP 3,817 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 2.97 V ~ 5.5 V 1.3 V ~ 5.5 V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-uMAX
DS1390U-33+ Datasheet DS1390U-33+ - Maxim Integrated DS1390U-33+-ND IC RTC CLK/CALENDAR SPI 10-USOP 2,314 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 2.97 V ~ 5.5 V 1.3 V ~ 5.5 V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-µSOP
DS1340Z-33+ Datasheet DS1340Z-33+ - Maxim Integrated DS1340Z-33+-ND IC RTC CLK/CALENDAR I2C 8-SOIC 1,758 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, Trickle-Charger
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HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.97 V ~ 5.5 V 1.3 V ~ 5.5 V 150µA @ 5.5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
DS1340U-33+ Datasheet DS1340U-33+ - Maxim Integrated DS1340U-33+-ND IC RTC CLK/CALENDAR I2C 8-USOP 1,472 - Immediate
3.37000 1 Tube?
Alternate Packaging
-
Active Clock/Calendar Leap Year, Trickle-Charger
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HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.97 V ~ 5.5 V 1.3 V ~ 5.5 V 150µA @ 5.5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-uMAX
DS1338Z-3+ Datasheet DS1338Z-3+ - Maxim Integrated DS1338Z-3+-ND IC RTC CLK/CALENDAR I2C 8-SOIC 1,306 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.7 V ~ 5.5 V 1.3 V ~ 3.7 V 200µA @ 3.3V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
DS1390U-3+ Datasheet DS1390U-3+ - Maxim Integrated DS1390U-3+-ND IC RTC CLK/CALENDAR SPI 10-USOP 1,159 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 2.7 V ~ 3.3 V 1.3 V ~ 3.7 V 125µA @ 2.7V ~ 3.3V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-µSOP
DS1374U-33+ Datasheet DS1374U-33+ - Maxim Integrated DS1374U-33+-ND IC RTC BINARY CNT I2C 10-USOP 827 - Immediate
3.37000 1 Tube?
Alternate Packaging
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Active Binary Counter Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer
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Binary Binary I²C, 2-Wire Serial 2.97 V ~ 5.5 V 1.3 V ~ 5.5 V 175µA @ 2.97V ~ 5.5V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-uMAX
DS1340Z-18+ Datasheet DS1340Z-18+ - Maxim Integrated DS1340Z-18+-ND IC RTC CLK/CALENDAR I2C 8-SOIC 804 - Immediate
5,200 - Factory Stock
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3.37000 1 Tube?
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Active Clock/Calendar Leap Year, Trickle-Charger
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HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.71 V ~ 5.5 V 1.3 V ~ 3.7 V 100µA @ 1.89V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
DS1302+ Datasheet DS1302+ - Maxim Integrated DS1302+-ND IC RTC CLK/CALENDAR SER 8-DIP 1,071 - Immediate
3.39000 1 Tube?
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Active Clock/Calendar Leap Year, NVSRAM, Trickle-Charger 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 2 V ~ 5.5 V 2 V ~ 5.5 V 0.3µA ~ 1µA @ 2V ~ 5V 0°C ~ 70°C Through Hole 8-DIP (0.300", 7.62mm) 8-PDIP
DS1308U-33+ Datasheet DS1308U-33+ - Maxim Integrated DS1308U-33+-ND IC RTC CLK/CALENDAR I2C 8-UMAX 881 - Immediate
3.51000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 3 V ~ 5.5 V 1.3 V ~ 5.5 V 125µA ~ 200µA @ 3V ~ 5.5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-uMAX
DS1339U-33+ Datasheet DS1339U-33+ - Maxim Integrated DS1339U-33+-ND IC RTC CLK/CALENDAR I2C 8-USOP 5,028 - Immediate
3.55000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.97 V ~ 5.5 V 1.3 V ~ 3.7 V 200µA @ 5.5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-uMAX
DS1339AU+ Datasheet DS1339AU+ - Maxim Integrated DS1339AU+-ND IC RTC CLK/CALENDAR I2C 8-USOP 2,545 - Immediate
3.59000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger
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HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.71 V ~ 5.5 V 1.3 V ~ 3.7 V 200µA @ 1.71V ~ 5.5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-uMAX
DS1302ZN+ Datasheet DS1302ZN+ - Maxim Integrated DS1302ZN+-ND IC RTC CLK/CALENDAR SER 8-SOIC 7,187 - Immediate
3.61000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, NVSRAM, Trickle-Charger 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 2 V ~ 5.5 V 2 V ~ 5.5 V 0.3µA ~ 1µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
RX-8564LC:B3 PURE SN Datasheet RX-8564LC:B3 PURE SN - EPSON SER3779TR-ND IC RTC CLK/CALENDAR I2C 12-VSOJ 7,250 - Immediate
3.66300 250 Tape & Reel (TR)?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year
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HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.8 V ~ 5.5 V
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0.65µA ~ 0.8µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 12-TFSOJ (0.094", 2.40mm Width) 12-VSOJ
RX-8564LC:B3 PURE SN Datasheet RX-8564LC:B3 PURE SN - EPSON SER3779CT-ND IC RTC CLK/CALENDAR I2C 12-VSOJ 7,676 - Immediate
5.71000 1 Cut Tape (CT)?
Alternate Packaging
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Active Clock/Calendar Alarm, Leap Year
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HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.8 V ~ 5.5 V
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0.65µA ~ 0.8µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 12-TFSOJ (0.094", 2.40mm Width) 12-VSOJ
RX-8564LC:B3 PURE SN Datasheet RX-8564LC:B3 PURE SN - EPSON SER3779DKR-ND IC RTC CLK/CALENDAR I2C 12-VSOJ 7,676 - Immediate
Digi-Reel® 1 Digi-Reel®?
Alternate Packaging
-
Active Clock/Calendar Alarm, Leap Year
-
HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.8 V ~ 5.5 V
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0.65µA ~ 0.8µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 12-TFSOJ (0.094", 2.40mm Width) 12-VSOJ
DS1307ZN+ Datasheet DS1307ZN+ - Maxim Integrated DS1307ZN+-ND IC RTC CLK/CALENDAR I2C 8-SOIC 7,770 - Immediate
3.71000 1 Tube?
Alternate Packaging
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Active Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 4.5 V ~ 5.5 V 2 V ~ 3.5 V 200µA @ 5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC
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02:10:37 2/23/2017