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 (USD) 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
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 6ppm
Datasheet
837In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 8 B Backup Switching 1.3 V 5.5 V - 40 C + 85 C RV-3129 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock RV-3029-C3, Real-Time Clock, I C-bus, B Stability, 25ppm @ -40 to +85C (SMD 3.7 x 2.5 x 0.9)
Datasheet
806In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) 2 B Backup Switching 1.3 V 5.5 V - 40 C + 85 C RV-3029-C3 SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
2,009In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 16 B SSOP-8 Backup Switching 2 V 6 V - 40 C + 85 C RS5C372 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock RV-8803-C7, Real-Time Clock, I C-bus, 3ppm @ -40 to +85C (SMD 3.2 x 1.5 x 0.8)
Datasheet
1,008In Stock
Min.: 1
Mult.: 1
Reel: 1,000

RV-8803-C7 SMD/SMT Reel, Cut Tape

Analog Devices / Maxim Integrated Real Time Clock Low-Current, SPI-Compatible Real-Time Cl
Datasheet
2,356In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 B TDFN-EP-8 No Backup Switching 2 V 5.5 V - 40 C + 85 C DS1347T SMD/SMT Reel, Cut Tape, MouseReel
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
2,778In 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 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
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
3,620In 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) QFN023023-16 Backup Switching 750 mV 5.5 V - 40 C + 85 C R2051L SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM ID
Datasheet
3,876In Stock
Min.: 1
Mult.: 1
Reel: 3,300

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape
Analog Devices / Maxim Integrated Real Time Clock 1024k NV SRAM with Phantom Clock
Datasheet
80In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 128 kB PowerCap Module-34 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1248Y SMD/SMT Tray
Analog Devices / Maxim Integrated Real Time Clock I C RTC/Supervisor with Trickle Charger
Datasheet
329In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 512 B SOIC-8 Backup Switching 2.97 V 3.63 V - 40 C + 85 C DS1388Z SMD/SMT Tube
Nisshinbo Real Time Clock 4-Wire Real Time Clock IC
Datasheet
1,839In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Serial 4-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SSOP-10 Backup Switching 2 V 5.5 V - 40 C + 85 C RV5C348 SMD/SMT Reel, Cut Tape, MouseReel

Renesas Electronics Real Time Clock .9RTC BASE
Datasheet
6,190In Stock
Min.: 1
Mult.: 1
Reel: 2,500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 56 B MSOP-8 Backup Switching 1.3 V 3.7 V - 40 C + 85 C 1338 SMD/SMT Reel, Cut Tape
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64
Datasheet
7,738In 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 SOIC-8 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 2Kb EE 64B SRAM EUI-64
Datasheet
2,781In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B MSOP-10 Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock RTCs with Constant-Voltage Trickle Charg
Datasheet
396In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 114 B EDIP-24 Integrated Battery 4.5 V 5.5 V - 40 C + 85 C DS12CR887 Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock Phantom Time Chip
Datasheet
71In 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
3,161In 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
34In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 32 kB EDIP-28 Integrated Battery 4.5 V 5.5 V - 40 C + 85 C DS1744 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
128In Stock
30On Order
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