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 (GBP) 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 IC
Datasheet
1,808In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 4-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-10 No Backup Switching 1.7 V 5.5 V - 40 C + 85 C R2043T SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
681In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SSOP-16 Backup Switching 750 mV 5.5 V - 40 C + 85 C R2051S SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
755In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-10 No Backup Switching 1.5 V 5.5 V - 40 C + 85 C R2221T SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
1,192In Stock
2,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SSOP-8 Backup Switching 1.7 V 6 V - 40 C + 85 C RS5C372 SMD/SMT Reel, Cut Tape, MouseReel
Renesas Electronics Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz
Datasheet
188In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C 1337AGD SMD/SMT Tube

Renesas Electronics Real Time Clock 1338B-18 REAL TIME CLOCK
Datasheet
192In Stock
Min.: 1
Mult.: 1

1338 Tube

Renesas Electronics Real Time Clock 1338D-31 REAL TIME CLOCK
Datasheet
191In Stock
Min.: 1
Mult.: 1

1338 Tube

Renesas Electronics Real Time Clock Real Time Clock
Datasheet
359In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-8 Backup Switching 1.3 V 3.7 V - 40 C + 85 C 1339 SMD/SMT Tube

Renesas Electronics Real Time Clock 1339D-31 REAL TIME CLOCK
Datasheet
172In Stock
Min.: 1
Mult.: 1

1339 Tube
Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/EEPROM IN 8LD W
Datasheet
94In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 512 B SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12026 SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLOCK/CALE NDARW/ EEPROM IN 8LD
Datasheet
855In Stock
980On Order
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 512 B SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12026 SMD/SMT Tube

Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/EEPROM IN 8LD
Datasheet
570In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 512 B Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12026 SMD/SMT Tube
Epson Timing Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR
Datasheet
1,990In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 256 B Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX4901CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX8901CE XS A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-3ppm 2k TR
Datasheet
770In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX8901CE SMD/SMT Reel, Cut Tape, MouseReel
Ambiq Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN
Datasheet
422In Stock
Min.: 1
Mult.: 1

Artasie I2C
Ambiq Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN
Datasheet
1,104In Stock
7,990On Order
Min.: 1
Mult.: 1

Artasie I2C w/ Power Management
Micro Crystal Real Time Clock
Datasheet
686In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 900 mV 5.5 V - 40 C + 85 C SMD/SMT
STMicroelectronics Real Time Clock Serial I2C bus RTC
Datasheet
459In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 32 B SOX-18 Backup Switching 2.7 V 5.5 V - 40 C + 85 C M41T83 SMD/SMT Reel, Cut Tape, MouseReel

STMicroelectronics Real Time Clock Serial I2C bus RTC
Datasheet
337In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 32 B QFN-16 Backup Switching 3 V 5.5 V - 40 C + 85 C M41T83 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock 16K (2Kx8) 150ns
Datasheet
8In Stock
More Info Available
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 2 kB PCDIP-24 Integrated Battery 4.75 V 5.5 V 0 C + 70 C M48T02 Through Hole Tube
Microchip Technology Real Time Clock I2C RTCC 64B SRAM No VBAT
Datasheet
717In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B PDIP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C Through Hole Tube
Microchip Technology Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-64
Datasheet
250In Stock
More Info Available
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
Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48
Datasheet
121In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB TSSOP-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED EUI-64
Datasheet
17In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB SOIC-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Texas Instruments Real Time Clock w/242x8 NVSRAM Alarm Wake-up
Datasheet
87In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS (24 hr) 242 B SOIC-24 4.5 V 5.5 V 0 C + 70 C BQ3285E SMD/SMT Tube