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
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
56In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS (24 hr) 2 kB EDIP-24 Backup Switching 2.7 V 3.7 V 0 C + 70 C DS17287 Through Hole Tube
Nisshinbo Real Time Clock 3-Wire Real Time Clock IC
Datasheet
1,989In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Serial 3-Wire 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 R2033T SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
90In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B TSSOP-24 Backup Switching 2.7 V 3.7 V - 40 C + 85 C DS1685EN SMD/SMT Tube
Nisshinbo Real Time Clock 4-wire Serial Interface
Datasheet
1,700In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Serial 4-Wire YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 16 B SSOP-10 Backup Switching 2 V 5.5 V - 40 C + 85 C RV5C348 SMD/SMT Reel, Cut Tape, MouseReel
Diodes Incorporated Real Time Clock 1.8V-5.5V Real Time Clock 12C bus
Datasheet
168In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Reel, Cut Tape, MouseReel
ABRACON Real Time Clock RTC TCXO I2C 3ppm 3215
Datasheet
700In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

I2C DFN-8 Backup Switching 1.5 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock RTC TCXO I2C 3ppm 3215 AEC-Q200
Datasheet
700In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

I2C DFN-8 Backup Switching 1.5 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock Real-time Clock IC
Datasheet
1,966In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) No Backup Switching 1.2 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
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


Epson Timing Real Time Clock
Datasheet
56,637In 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
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
Epson Timing Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R
Datasheet
2,837In 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
Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTCs for High-ESR Crystals
Datasheet
246In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TDFN-EP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1342T SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi
Datasheet
20In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1556P SMD/SMT Tray

Diodes Incorporated Real Time Clock Real-time Clock Mod I2C Bus
Datasheet
4,661In Stock
MouseReel Available
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 Backup Switching 2 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock Real Time Clock MSOP-8 T&R 2.5K
Datasheet
3,203In 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 Backup Switching 2.7 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape
Diodes Incorporated Real Time Clock Real Time Clock
Datasheet
3,871In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 No Backup Switching 1.3 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR
Datasheet
2,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS (24 hr) 16 B Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX6110SA SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus
Datasheet
972In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 2.5 V 5.5 V - 40 C + 85 C RX8900CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX4901CE XB B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR
Datasheet
2,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR
Datasheet
1,890In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR
Datasheet
480In Stock
Min.: 1
Mult.: 1
Reel: 250

I2C YY-MM-DD-dd HH:MM:SS (24 hr) VSOJ-12 No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX-8803LC SMD/SMT Reel, Cut Tape

Epson Timing Real Time Clock RX8130CE:BX REAL TIME CLOCK +/-23PPM ANY TR
Datasheet
1,690In Stock
Min.: 1
Mult.: 1
Reel: 100

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.25 V 5.5 V - 40 C + 85 C RX8130CE SMD/SMT Reel, Cut Tape
Epson Timing Real Time Clock RX4901CE XB D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR
Datasheet
972In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 RX-4045SA:AA0 PURE SN 5+/-5PPM 1K T/R
Datasheet
2,034In Stock
Min.: 1
Mult.: 1
Reel: 1,000

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