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 (CAD) 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
Epson Timing Real Time Clock RX8901CE XB B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR
Datasheet
1,136In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
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
Reel: 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
Reel: 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
Reel: 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
ECS Real Time Clock Low Power Consumption IC RTC 3.2 x 2.5 x 1.0 mm (lwh)
Datasheet
11,987In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

I2C YY-MM-DD HH:MM:SS (24 hr) Backup Switching 2.5 V 5 V - 20 C + 80 C SMD/SMT Reel, Cut Tape, MouseReel
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
Texas Instruments Real Time Clock RTC IC with 114x8 NV SRAM
Datasheet
30In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 114 B SOIC-24 Backup Switching 4.5 V 5.5 V 0 C + 70 C BQ3285 SMD/SMT Tube
Texas Instruments Real Time Clock Parallel RTC A 595-B Q4802LYDW A 595-BQ4 A 595-BQ4802LYDW
Datasheet
897In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 16 B SOIC-28 Backup Switching 2.7 V 3.6 V 0 C + 70 C BQ4802LY SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Parallel RTC A 595-B Q4802LYPWR A 595-BQ A 595-BQ4802LYPWR
Datasheet
68In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 16 B TSSOP-28 Backup Switching 2.7 V 3.6 V 0 C + 70 C BQ4802LY SMD/SMT Tube
Texas Instruments Real Time Clock Parallel RTC A 595-B Q4802YDWR A 595-BQ4 A 595-BQ4802YDWR
Datasheet
5In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 16 B SOIC-28 Backup Switching 4.5 V 5.5 V 0 C + 70 C BQ4802Y SMD/SMT Tube
Texas Instruments Real Time Clock Parallel RTC
Datasheet
76In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 16 B TSSOP-28 Backup Switching 4.5 V 5.5 V 0 C + 70 C BQ4802Y SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Real-Time Clocks
Datasheet
484In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

Multiplexed YY-MM-DD-dd HH:MM:SS (24 hr) 114 B SO-24 4.5 V 5.5 V 0 C + 70 C DS12885S SMD/SMT Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock 1.8V-5.5V Real Time Clock 12C bus
Datasheet
1,751In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock 2-Wire Real-time Clock module
Datasheet
162In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock Real-time Clock IC
Datasheet
147In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R
Datasheet
2,785In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

Serial 4-Wire YY-MM-DD-dd HH:MM:SS (24 hr) SOP-14 No Backup Switching 1.7 V 5.5 V - 40 C + 85 C RX-4045SA SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock
Datasheet
56,104In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) 16 B No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX8010SJ SMD/SMT Bulk