Real Time Clock

Real Time Clock
Real Time Clocks (RTCs) are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many real time clock manufacturers including Analog Devices, Epson, Microchip, Micro Crystal, NXP, Renesas Electronics, STMicroelectronics & more. Please view our large selection of real time clocks below.
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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model RTC Bus Interface
Date Format
Time Format
RTC Memory Size
Package/Case
Battery Backup Switching
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Series
Mounting Style
Qualification
Packaging
Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTC with 56-Byte NV RAM
Datasheet
546In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 56 B uSOP-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C DS1308U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Phantom Time Chip
Datasheet
72In Stock
Min.: 1
Mult.: 1

Phantom Clock YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 B SO-16 Backup Switching 3 V 3.6 V 0 C + 70 C DS1315S SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C RTC/Supervisor with Trickle Charger
Datasheet
325In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 512 B SOIC-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1388Z SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle
Datasheet
3.162In Stock
Min.: 1
Mult.: 1

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-10 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1394U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks
Datasheet
102In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 256 B EDIP-28 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1511Y Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi
Datasheet
39In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB Integrated Battery 2.97 V 3.63 V 0 C + 70 C DS1556W Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
128In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 512 kB Integrated Battery 4.5 V 5.5 V - 40 C + 85 C DS1747 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
84In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 kB EDIP-24 Integrated Battery 4.5 V 5.5 V 0 C + 70 C DS17887 Through Hole Tube
Nisshinbo Real Time Clock 4-wire Real Time Clock Module
Datasheet
4.211In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

Serial 4-Wire YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) No Backup Switching 1.7 V 5.5 V - 40 C + 85 C R2045S/D SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC 12.041In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

Serial 2-Wire, I2C BCD BCD QFN1818-12 No Backup Switching 1.5 V 5.5 V - 40 C + 85 C R2223L SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
2.234In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SO-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1337S SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C RTC with 56-Byte NV RAM
Datasheet
2.892In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Serial 2-Wire, I2C HH:MM:SS (24 hr) 56 B SOIC-8 2.7 V 3.3 V - 40 C + 85 C DS1338Z SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
2.982In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS (24 hr) SO-8 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1340Z SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock
Datasheet
2.366In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

I2C Binary Binary 3 B uSOP-8 No Backup Switching 1.7 V 5.5 V - 40 C + 85 C DS1371U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
Datasheet
1.721In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

Serial 2-Wire, I2C Binary Binary 3 B SO-16 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1374C SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM EUI-48
Datasheet
3.984In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B MSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock I2C RTCC 64B SRAM No VBAT
Datasheet
5.828In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.300

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B TDFN-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-48
Datasheet
2.323In Stock
Min.: 1
Mult.: 1
Reel: 2.500

Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Reel, Cut Tape
Microchip Technology Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48
Datasheet
1.311In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Trickle-Charge Timekeeping Chip
Datasheet
1.879In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.000

Serial 3-Wire YY-MM-DD-dd HH:MM:SS (24 hr) 31 B SOIC-8 Backup Switching 2 V 5.5 V 0 C + 70 C DS1302S SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTC with 56-Byte NV RAM
Datasheet
3.117In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 56 B uSOP-8 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1308U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTCs for High-ESR Crystals
Datasheet
2.410In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1341U SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
Datasheet
969In Stock
Min.: 1
Mult.: 1

I2C Binary Binary 3 B SO-16 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1374C SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi
Datasheet
38In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB PowerCap Module-34 Backup Switching 2.97 V 3.63 V - 40 C + 85 C DS1556WP SMD/SMT Tray
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
100In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B EDIP-24 Integrated Battery 2.7 V 3.7 V - 40 C + 85 C DS1687 Through Hole Tube