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
ECS Real Time Clock Low Power High Stability +/-5 ppm -40 - +85C IC Real Time Clock 3.2 x 2.5 mm
Datasheet
1,027In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

I2C YY-MM-DD HH:MM:SS (24 hr) Backup Switching 1.6 V 5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Parallel RTC A 595-B Q4802LYPW A 595-BQ4 A 595-BQ4802LYPW
Datasheet
47In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

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 Reel, Cut Tape, MouseReel

ABLIC Real Time Clock 3-Wire 1.3-5.5V
Datasheet
118In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Serial 3-Wire YY-MM-DD-dd HH:MM:SS (24 hr) TSSOP-8 Backup Switching 1.3 V 5.5 V - 40 C + 85 C S-35190 SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR
Datasheet
656In Stock
Min.: 1
Mult.: 1
: 1,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.7 V 5.5 V - 40 C + 85 C RX-8025SA SMD/SMT Reel, Cut Tape

Epson Timing Real Time Clock 32.768kHz 5ppm I2C-Bus
Datasheet
9,329In Stock
27,700On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

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, MouseReel
Epson Timing Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R
Datasheet
1,281In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
Serial 2-Wire, 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

NXP Semiconductors Real Time Clock CMOS RTC/CALENDAR RTC IC
Datasheet
40In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

I2C YY-MM-DD-dd HH:MM:SS (24 hr) TSSOP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 125 C PCA8565 SMD/SMT AEC-Q100 Reel, Cut Tape, MouseReel

NXP Semiconductors Real Time Clock ULTRA LOW PWR CLOCK RTC IC
Datasheet
1,405In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) TSSOP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C PCF8563 SMD/SMT Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock 0.5um 3.3V Triple poly dbl metal CMOS
Datasheet
1,966In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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, MouseReel

Epson Timing Real Time Clock RX-8803LC:UB PURE SN I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN BULK
Datasheet
5In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX-8803LC SMD/SMT Bulk


Epson Timing Real Time Clock I2C-BUS INTERFACE RTC 5+/-23PPM (VSOJ-20) 1K TR
Datasheet
96In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 1,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RTC SON 14PIN 5+/-23PPM 250TR
Datasheet
218In Stock
Min.: 1
Mult.: 1
: 250

Serial 3-Wire YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOP-14 No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX-4571SA SMD/SMT Reel, Cut Tape
Epson Timing Real Time Clock I2C Bus 5 +/-23ppm
Datasheet
584In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

I2C 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-8025SA SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C
Datasheet
111In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 250

I2C 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-8025SA SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 5+/-23PPM RTC 250TR
Datasheet
94In Stock
More Info Available
Min.: 1
Mult.: 1
: 250
I2C YY-MM-DD-dd HH:MM:SS (24 hr) 16 B VSOJ-12 No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX-8571LC SMD/SMT Reel, Cut Tape
Epson Timing Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR
Datasheet
101In Stock
250On Order
Min.: 1
Mult.: 1
: 250

I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOP-14 No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX-8803SA SMD/SMT Reel, Cut Tape
Epson Timing Real Time Clock RX4111CE:A3 REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM 250TR
Datasheet
91In Stock
2,750On Order
MouseReel Available
Min.: 1
Mult.: 1
: 250

Serial 4-Wire, SPI Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX4111CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX4111CE:B3 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 250TR
Datasheet
152In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Serial 4-Wire, SPI Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX4111CE SMD/SMT Reel, Cut Tape, MouseReel

Epson Timing Real Time Clock RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR
Datasheet
1,118In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 4-Wire, SPI Backup Switching 1.6 V 5.5 V - 40 C + 85 C RTC SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR
Datasheet
419In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

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 RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR
Datasheet
235In Stock
More Info Available
MouseReel Available
Min.: 1
Mult.: 1
: 250

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX8111CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX8111CE:B3 REAL TIME CLOCK I2C-BUS 3.0V 23PPM 250TR
Datasheet
153In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX8111CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX8130CE:B6 REAL TIME CLOCK +/-23PPM 2K TR
Datasheet
218In Stock
35,123On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

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, MouseReel

Epson Timing Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK
Datasheet
548In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

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 RX-8571LC SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR
Datasheet
382In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

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 RX-8571SA SMD/SMT Reel, Cut Tape, MouseReel