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: 791
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) 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

Epson Timing Real Time Clock 32.768kHz 5ppm I2C-Bus 16.409In Stock
Cut Tape
Rp26.051,32
Rp18.896,38
Rp17.080,13
Rp15.135,45
Reel
Rp13.190,77
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 32.768kHz 5ppm I2C-Bus
1.634In Stock
Cut Tape
Rp51.735,72
Rp38.526,60
Rp35.407,78
Rp31.738,58
Reel
Rp30.270,90
Min.: 1
Mult.: 1
: 250
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 1K T/R 1.256In Stock
Cut Tape
Rp53.203,40
Rp39.627,36
Rp36.325,08
Rp32.655,88
Reel
Rp28.803,22
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 I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R 2.002In Stock
2.000Expected 10/05/2027
Cut Tape
Rp52.102,64
Rp38.893,52
Rp35.591,24
Rp31.922,04
Reel
Rp27.519,00
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
Epson Timing Real Time Clock RX8901CE:XB A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR 3.163In Stock
Cut Tape
Rp82.740,46
Rp62.559,86
Rp57.422,98
Rp51.919,18
Reel
Rp46.598,84
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 RX8901CE SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX8901CE XB B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR 832In Stock
Cut Tape
Rp82.740,46
Rp62.559,86
Rp57.422,98
Rp51.919,18
Reel
Rp44.030,40
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
NXP Semiconductors Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package. 1In Stock
76.000Expected 29/03/2027
Cut Tape
Rp18.162,54
Rp13.631,08
Rp11.924,90
Rp10.475,57
Reel
Rp8.530,89
Min.: 1
Mult.: 1
: 4.000
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) HWSON-8 No Backup Switching 900 mV 5.5 V - 40 C + 85 C PCF85063TP SMD/SMT Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock Real Time Clock MSOP-8 T&R 2.5K 1.053In Stock
Cut Tape
Rp27.152,08
Rp19.813,68
Rp18.052,46
Rp16.016,06
Reel
Min.: 1
Mult.: 1
: 2.500
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) Backup Switching 2.7 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape
Diodes Incorporated Real Time Clock Clock VCXO 1.477In Stock
Cut Tape
Rp26.968,62
Rp19.446,76
Rp17.575,47
Rp15.520,72
Reel
Min.: 1
Mult.: 1
: 3.000
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TDFN-8 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 1.752In Stock
Cut Tape
Rp22.565,58
Rp16.236,21
Rp14.695,15
Rp12.970,62
Reel
Min.: 1
Mult.: 1
: 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 RTC SON 14PIN 5+/-23PPM 250TR 15In Stock
500Expected 25/11/2026
Cut Tape
Rp70.081,72
Rp52.469,56
Rp48.066,52
Rp43.296,56
Reel
Rp40.728,12
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 REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR 333In Stock
Cut Tape
Rp75.952,44
Rp57.239,52
Rp52.653,02
Rp47.516,14
Reel
Rp42.012,34
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, MouseReel
Epson Timing Real Time Clock 3.0Volt -40 to 85C I2C BUS 206In Stock
250Expected 01/03/2027
Cut Tape
Rp133.191,96
Rp102.370,68
Rp94.665,36
Rp84.575,06
Reel
Rp81.823,16
Min.: 1
Mult.: 1
: 250
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOP-14 Backup Switching 2.4 V 5.5 V - 40 C + 85 C RX-8035SA SMD/SMT Reel, Cut Tape, MouseReel

Epson Timing Real Time Clock RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR 356In Stock
4.000Expected 16/11/2026
Cut Tape
Rp35.407,78
Rp26.051,32
Rp23.666,34
Rp21.097,90
Reel
Rp17.832,31
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 RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR 90In Stock
500Expected 04/05/2027
Cut Tape
Rp74.117,84
Rp55.955,30
Rp51.368,80
Rp46.415,38
Reel
Rp43.846,94
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 RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 459In Stock
Cut Tape
Rp66.595,98
Rp49.534,20
Rp45.314,62
Rp40.544,66
Reel
Rp35.591,24
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 5+/-23PPM REAL TIME CLOCK 1K TR 179In Stock
Cut Tape
Rp57.239,52
Rp44.030,40
Rp40.544,66
Rp36.875,46
Reel
Rp32.105,50
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-8571SA SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 32.768kHz +/-5ppm -40C +85C 27In Stock
Cut Tape
Rp106.957,18
Rp81.823,16
Rp77.053,20
Rp68.614,04
Reel
Rp65.311,76
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 RX8900CE SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus 117In Stock
Cut Tape
Rp112.277,52
Rp86.042,74
Rp79.621,64
Rp72.466,70
Reel
Rp68.797,50
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 RX8901CE XS B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-3ppm 2k TR 3In Stock
2.000On Order
Cut Tape
Rp117.414,40
Rp89.895,40
Rp83.107,38
Rp71.549,40
Reel
Rp62.743,32
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
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 25ppm AEC
8.230On Order
Cut Tape
Rp72.650,16
Rp54.854,54
Rp50.451,50
Rp45.498,08
Reel
Rp41.828,88
Min.: 1
Mult.: 1
: 1.000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.3 V 5.5 V - 40 C + 125 C RV-3129 SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing RX8111CE A0
Epson Timing Real Time Clock RX8111CE:A0 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 1K TR 372In Stock
1.000Expected 14/12/2026
Cut Tape
Rp37.425,84
Rp27.519,00
Rp24.950,56
Rp22.382,12
Reel
Rp19.630,22
Min.: 1
Mult.: 1
: 1.000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 85 C RTC SMD/SMT Reel, Cut Tape
Epson Timing RX8111CE B0
Epson Timing Real Time Clock RX8111CE:B0 REAL TIME CLOCK I2C-BUS 3.0V 23PPM 1K TR 433In Stock
1.000Expected 11/01/2027
Cut Tape
Rp31.188,20
Rp22.749,04
Rp20.730,98
Rp18.272,62
Reel
Rp15.759,21
Min.: 1
Mult.: 1
: 1.000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.6 V 5.5 V - 40 C + 85 C RTC SMD/SMT Reel, Cut Tape
Micro Crystal Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C
19.998Expected 16/04/2027
Cut Tape
Rp56.689,14
Rp42.379,26
Rp38.893,52
Rp35.040,86
Reel
Rp31.922,04
Min.: 1
Mult.: 1
: 1.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) No Backup Switching 1.5 V 5.5 V - 40 C + 85 C RV-8803-C7 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 1ppm
185.900On Order
Cut Tape
Rp44.213,86
Rp32.839,34
Rp30.087,44
Rp26.968,62
Reel
Rp24.400,18
Min.: 1
Mult.: 1
: 1.000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 1.2 V 5.5 V - 40 C + 85 C RV-3028 SMD/SMT Reel, Cut Tape, MouseReel