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.
More...

Please view our large selection of real time clocks below.
Results: 787
Select Image Part # Mfr. Description Datasheet Availability Pricing (CRC) 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 I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R 1 256In Stock
Cut Tape
₡1 509,35
₡1 124,21
₡1 030,52
₡926,43
Reel
₡817,13
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 RX8901CE:XB A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR 3 163In Stock
Cut Tape
₡2 347,30
₡1 774,79
₡1 629,06
₡1 472,92
Reel
₡1 321,98
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
₡2 347,30
₡1 774,79
₡1 629,06
₡1 472,92
Reel
₡1 249,12
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 3/29/2027
Cut Tape
₡515,26
₡386,71
₡338,30
₡297,19
Reel
₡242,02
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
₡770,29
₡562,10
₡512,14
₡454,37
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
₡765,08
₡551,69
₡498,61
₡440,31
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
₡640,17
₡460,61
₡416,89
₡367,97
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 11/25/2026
Cut Tape
₡1 988,18
₡1 488,53
₡1 363,62
₡1 228,30
Reel
₡1 155,43
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
₡2 154,73
₡1 623,85
₡1 493,74
₡1 348,01
Reel
₡1 191,87
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 3/1/2027
Cut Tape
₡3 778,58
₡2 904,20
₡2 685,60
₡2 399,35
Reel
₡2 321,28
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 11/16/2026
Cut Tape
₡1 004,50
₡739,06
₡671,40
₡598,54
Reel
₡505,89
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 85In Stock
500Expected 5/4/2027
Cut Tape
₡2 102,68
₡1 587,42
₡1 457,30
₡1 316,78
Reel
₡1 243,91
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
₡1 889,29
₡1 405,26
₡1 285,55
₡1 150,23
Reel
₡1 009,70
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
₡1 623,85
₡1 249,12
₡1 150,23
₡1 046,14
Reel
₡910,81
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
₡3 034,31
₡2 321,28
₡2 185,95
₡1 946,54
Reel
₡1 852,86
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 I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R 2 002In Stock
2 000Expected 5/10/2027
Cut Tape
₡1 478,12
₡1 103,39
₡1 009,70
₡905,61
Reel
₡780,70
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 32.768kHz-DTCXO 5ppm I2C-Bus 117In Stock
Cut Tape
₡3 185,25
₡2 440,98
₡2 258,82
₡2 055,84
Reel
₡1 951,75
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 54In Stock
2 000Expected 11/12/2026
Cut Tape
₡3 330,98
₡2 550,28
₡2 357,71
₡2 029,82
Reel
₡1 779,99
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
₡2 061,04
₡1 556,19
₡1 431,28
₡1 290,75
Reel
₡1 186,66
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 12/14/2026
Cut Tape
₡1 061,75
₡780,70
₡707,83
₡634,97
Reel
₡556,90
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 1/11/2027
Cut Tape
₡884,79
₡645,38
₡588,13
₡518,38
Reel
₡447,08
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 4/16/2027
Cut Tape
₡1 608,24
₡1 202,28
₡1 103,39
₡994,09
Reel
₡905,61
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
₡1 254,32
₡931,63
₡853,56
₡765,08
Reel
₡692,22
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
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 1ppm
69 293On Order
Cut Tape
₡1 348,01
₡999,29
₡916,02
₡817,13
Reel
₡728,65
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
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 6ppm AEC
26 738On Order
Cut Tape
₡2 414,96
₡1 821,63
₡1 675,90
₡1 514,55
Reel
₡1 321,98
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