Real Time Clock

 Real Time Clock
Real Time Clocks are in stock with same-day shipping at Mouser 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.
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Please view our large selection of real time clocks below.
Results: 792
Select Image Part # Mfr. Description Datasheet Availability Pricing (PEN) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Interface Type Date Format Time Format Package / Case Battery Backup Switching Supply Voltage - Min Supply Voltage - Max Minimum Operating Temperature Maximum Operating Temperature Series Mounting Style Qualification Time Keeping Current Packaging

Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
28In Stock
S/ 145.70
S/ 117.94
S/ 111.01
S/ 104.09
Min.: 1
Mult.: 1
Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SO-24 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS17885S SMD/SMT Tube


Epson Timing Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus 921In Stock
Cut Tape
S/ 19.03
S/ 14.36
S/ 13.20
S/ 11.91
Reel
S/ 10.51
Min.: 1
Mult.: 1
: 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 RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR 250In Stock
Cut Tape
S/ 41.10
S/ 32.00
S/ 29.70
S/ 27.21
Reel
S/ 25.69
Min.: 1
Mult.: 1
: 250
I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX8804CE SMD/SMT Reel, Cut Tape
Epson Timing Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR 469In Stock
Cut Tape
S/ 45.46
S/ 35.62
S/ 33.16
S/ 28.65
Reel
S/ 28.10
Min.: 1
Mult.: 1
: 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 1,627In Stock
Cut Tape
S/ 10.98
S/ 8.17
S/ 7.55
Reel
S/ 6.62
S/ 6.31
Min.: 1
Mult.: 1
: 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 1.6-5.5V 257In Stock
Cut Tape
S/ 41.10
S/ 32.00
S/ 28.49
S/ 28.10
Reel
S/ 23.86
Min.: 1
Mult.: 1
: 250
I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX8804CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus
1,019In Stock
Cut Tape
S/ 37.80
S/ 29.43
S/ 27.33
S/ 25.03
Reel
S/ 23.71
Min.: 1
Mult.: 1
: 250
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 5+/-23PPM RTC 250TR 844In Stock
Cut Tape
S/ 28.30
S/ 21.84
S/ 19.62
S/ 18.18
Reel
S/ 16.74
Min.: 1
Mult.: 1
: 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-8571LC SMD/SMT Reel, Cut Tape


Epson Timing Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus 766In Stock
Cut Tape
S/ 23.32
S/ 17.87
S/ 16.50
S/ 15.03
Reel
S/ 14.29
Min.: 1
Mult.: 1
: 250
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 RX8900SA SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus 14In Stock
Cut Tape
S/ 38.69
S/ 30.09
S/ 27.95
S/ 25.57
Reel
S/ 24.25
Min.: 1
Mult.: 1
: 250
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 RX8900SA SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 3.8ppm 1.6-5.5V 277In Stock
Cut Tape
S/ 30.01
S/ 23.12
S/ 20.55
S/ 19.19
Reel
S/ 17.71
Min.: 1
Mult.: 1
: 250
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX8804CE SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus 543In Stock
Cut Tape
S/ 11.87
S/ 8.87
S/ 8.10
S/ 7.28
Reel
S/ 6.23
Min.: 1
Mult.: 1
: 1,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 2.5 V 5.5 V - 40 C + 85 C RX8900SA SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR 1,922In Stock
Cut Tape
S/ 23.08
S/ 17.63
S/ 16.27
S/ 14.79
Reel
S/ 12.46
Min.: 1
Mult.: 1
: 2,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) 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-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 459In Stock
Cut Tape
S/ 14.05
S/ 10.55
S/ 9.65
S/ 8.64
Reel
S/ 7.05
Min.: 1
Mult.: 1
: 1,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) 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 RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR 1,800In Stock
Cut Tape
S/ 22.77
S/ 17.36
S/ 16.00
S/ 14.52
Reel
S/ 12.61
Min.: 1
Mult.: 1
: 2,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX4901CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR 1,988In Stock
Cut Tape
S/ 22.77
S/ 17.36
S/ 16.00
S/ 14.52
Reel
S/ 12.65
Min.: 1
Mult.: 1
: 2,000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 105 C RX4901CE SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR 411In Stock
Cut Tape
S/ 19.27
S/ 14.67
S/ 13.51
S/ 12.26
Reel
S/ 11.44
Min.: 1
Mult.: 1
: 250
Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX6110SA SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus 2,960In Stock
Cut Tape
S/ 12.85
S/ 9.61
S/ 8.80
S/ 7.94
Reel
S/ 7.20
Min.: 1
Mult.: 1
: 3,000
I2C Backup Switching 1.6 V 5.5 V - 40 C + 85 C AB-RTC-TH-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock RTC TCXO I2C 3ppm 3215 826In Stock
Cut Tape
S/ 20.32
S/ 15.49
S/ 14.29
S/ 12.96
Reel
S/ 11.87
Min.: 1
Mult.: 1
: 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 990In Stock
Cut Tape
S/ 21.18
S/ 16.15
S/ 14.87
S/ 13.51
Reel
S/ 12.38
Min.: 1
Mult.: 1
: 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 Built-In TXCO Real Time Clock Module with I2C Bus 2,348In Stock
Cut Tape
S/ 7.40
S/ 5.41
S/ 4.90
S/ 4.36
Reel
S/ 3.87
Min.: 1
Mult.: 1
: 3,000
I2C SOP-8 Backup Switching 1.6 V 5.5 V - 40 C + 85 C AB-RTC-TA-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus 2,049In Stock
Cut Tape
S/ 14.29
S/ 10.78
S/ 9.89
S/ 8.95
Reel
S/ 7.90
Min.: 1
Mult.: 1
: 1,300
I2C Backup Switching 1.6 V 5.5 V - 40 C + 85 C AB-RTC-TC-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In XO Real Time Clock Module with I2C Bus 1,968In Stock
Cut Tape
S/ 10.32
S/ 7.67
S/ 7.01
S/ 6.27
Reel
S/ 5.68
Min.: 1
Mult.: 1
: 3,000
I2C Backup Switching 1.2 V 5.5 V - 40 C + 85 C AB-RTC-XB-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7mm 4,320In Stock
Cut Tape
S/ 5.88
S/ 4.32
S/ 3.86
S/ 3.42
Reel
S/ 3.08
Min.: 1
Mult.: 1
: 1,000
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SON-8 900 mV 5.5 V - 40 C + 85 C RV-8263-C8 SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM 41,826In Stock
Cut Tape
S/ 3.58
S/ 3.57
Reel
S/ 3.00
Min.: 1
Mult.: 1
: 3,300
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel