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
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
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM ID
Datasheet
5.697In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, 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

Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
1.407In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SO-16 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1337C SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
1.364In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1339U SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
2.458In 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) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1339U SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTCs for High-ESR Crystals
Datasheet
1.298In Stock
Min.: 1
Mult.: 1

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 DS1342U SMD/SMT Tube
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM EUI-48
Datasheet
3.979In 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
5.734In 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
2.223In 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
Analog Devices / Maxim Integrated Real Time Clock Trickle-Charge Timekeeping Chip
Datasheet
1.871In 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
3.053In 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
2.650In 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
926In 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 Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
44In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB PowerCap Module-34 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1746P SMD/SMT Tray
Microchip Technology Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID
Datasheet
1.865In 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 I C Serial Real-Time Clock
Datasheet
2.803In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) DIP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1337 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep
Datasheet
68In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 32 kB PowerCap Module-34 Backup Switching 2.97 V 3.63 V - 40 C + 85 C DS1554WP SMD/SMT Tray
Analog Devices / Maxim Integrated Real Time Clock Watchdog Clocks with NV RAM Control
Datasheet
253In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) TQFP-48 Backup Switching 4.5 V 5.5 V - 40 C + 85 C DS1558Y SMD/SMT Tray

Analog Devices / Maxim Integrated Real Time Clock Portable System Controller
Datasheet
148In Stock
Min.: 1
Mult.: 1

Serial 3-Wire Binary Binary TSSOP-20 Backup Switching 2.7 V 3.3 V 0 C + 70 C DS1673E SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
81In 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 0 C + 70 C DS1687 Through Hole Tube
Renesas Electronics Real Time Clock .9RTC BASE
Datasheet
1.787In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 56 B SOIC-8 Backup Switching 1.3 V 3.7 V - 40 C + 85 C 1338 SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock Low Current Real Time Clock with I2C Int
Datasheet
3.115In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) 64 B Backup Switching 1.6 V 3.6 V - 40 C + 85 C MAX31341 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Low-Pwr serial RTC W/ battry switchover
Datasheet
2.831In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) 8 B SOIC-8 Backup Switching 2 V 5.5 V - 40 C + 85 C M41T01 SMD/SMT Reel, Cut Tape, MouseReel