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: 745
Select Image Part # Mfr. Description Datasheet Availability Pricing (SEK) 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 -40C +85C 27In Stock
Cut Tape
56,36 kr
43,20 kr
40,61 kr
36,23 kr
Reel
34,43 kr
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
59,18 kr
45,34 kr
41,96 kr
38,25 kr
Reel
36,34 kr
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
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 25ppm AEC
8 230On Order
Cut Tape
48,15 kr
36,34 kr
33,41 kr
30,15 kr
Reel
27,68 kr
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 2026-12-14
Cut Tape
19,69 kr
14,51 kr
13,16 kr
11,81 kr
Reel
10,35 kr
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 2027-01-11
Cut Tape
16,43 kr
12,04 kr
10,94 kr
9,64 kr
Reel
8,31 kr
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 +/-20 PPM I2C -40/+85C
30 062Expected 2026-11-13
Cut Tape
31,73 kr
23,63 kr
21,49 kr
19,35 kr
Reel
16,88 kr
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 V 4.4 V - 40 C + 85 C RV-4162-C7 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C
93 760On Order
Cut Tape
35,55 kr
29,03 kr
27,34 kr
24,64 kr
Reel
18,68 kr
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 32.768 kHz +/-3 PPM I2C -40/+85C
19 920Expected 2027-04-16
Cut Tape
37,58 kr
28,01 kr
25,76 kr
23,18 kr
Reel
21,15 kr
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
180 900On Order
Cut Tape
29,25 kr
21,71 kr
19,91 kr
17,89 kr
Reel
16,20 kr
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
31,50 kr
23,29 kr
21,38 kr
19,13 kr
Reel
16,99 kr
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
18 738On Order
Cut Tape
56,36 kr
42,53 kr
39,15 kr
35,33 kr
Reel
30,83 kr
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
Micro Crystal Real Time Clock 32.768kHz I2C Time Acc. 6ppm
6 643On Order
Cut Tape
52,65 kr
39,60 kr
36,45 kr
32,85 kr
31,28 kr
Reel
31,28 kr
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 + 85 C RV-3129 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock
22 188Expected 2026-11-20
Cut Tape
19,24 kr
14,06 kr
12,71 kr
11,25 kr
Reel
10,08 kr
Min.: 1
Mult.: 1
: 1 000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 900 mV 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Serial 64 (8X8)
9 523On Order
Cut Tape
40,28 kr
30,38 kr
27,90 kr
25,20 kr
Reel
22,05 kr
Min.: 1
Mult.: 1
: 2 500
Serial 2-Wire, I2C YYYY-MM-DD HH:MM:SS (24 hr) SOIC-8 Backup Switching 2 V 5.5 V - 40 C + 85 C M41T00 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Serial 512 (64x8)
22 786On Order
Cut Tape
30,94 kr
23,51 kr
21,38 kr
19,46 kr
Reel
16,43 kr
Min.: 1
Mult.: 1
: 2 500
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 4.5 V 5.5 V - 40 C + 85 C M41T56 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Serial I2C bus RTC
7 500On Order
Cut Tape
42,08 kr
31,73 kr
29,25 kr
26,44 kr
Reel
22,61 kr
Min.: 1
Mult.: 1
: 2 500
Serial YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C M41T82 SMD/SMT Reel, Cut Tape, MouseReel

STMicroelectronics Real Time Clock Battery Swtchovr-RTC
19 485On Order
Cut Tape
43,76 kr
33,30 kr
30,26 kr
27,79 kr
Reel
24,19 kr
Min.: 1
Mult.: 1
: 1 000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) QFN-16 Backup Switching 2.7 V 5.5 V - 40 C + 85 C M41T83 SMD/SMT Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX4901CE XB D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR 234In Stock
Cut Tape
43,65 kr
32,96 kr
30,26 kr
27,34 kr
Reel
22,84 kr
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 I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 1K TR 8In Stock
Cut Tape
54,45 kr
41,51 kr
38,36 kr
34,76 kr
Reel
30,04 kr
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-8803LC SMD/SMT Reel, Cut Tape, MouseReel
NXP Semiconductors Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package.
75 250Expected 2027-03-29
Cut Tape
9,57 kr
7,19 kr
6,29 kr
5,52 kr
Reel
4,50 kr
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
ABRACON Real Time Clock 32.768 KHZ 3-OUTPUT
11 823Expected 2026-12-28
Cut Tape
32,85 kr
24,53 kr
22,50 kr
20,25 kr
Reel
15,53 kr
Min.: 1
Mult.: 1
: 3 000
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) QFN-16 Backup Switching 1.7 V 3.6 V - 40 C + 85 C AB08x5 SMD/SMT Reel, Cut Tape, MouseReel
Renesas / Intersil Real Time Clock REAL TIME CLOCK AND TMP COMP CRYSTL INLD
4 240Expected 2027-03-11
81,34 kr
61,88 kr
55,46 kr
52,31 kr
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS (24 hr) DFN-20 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12020 SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
6 360On Order
52,09 kr
39,04 kr
36,11 kr
32,85 kr
Min.: 1
Mult.: 1
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12022 SMD/SMT Tube
Micro Crystal Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200
1 324On Order
Cut Tape
36,79 kr
27,45 kr
24,98 kr
22,50 kr
Reel
21,38 kr
Min.: 1
Mult.: 1
: 1 000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SON-8 Backup Switching 1.1 V 5.5 V - 40 C + 85 C RV-3028-C8 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock Real Time Clock, automotive grade AEC-Q200
1 000Expected 2026-11-20
Cut Tape
55,35 kr
41,85 kr
38,36 kr
34,65 kr
34,31 kr
Reel
28,91 kr
Min.: 1
Mult.: 1
: 1 000
Serial 2-Wire, I2C YY-MM-DD HH:MM:SS:hh (12 hr, 24 hr) SON-10 Backup Switching 1.3 V 5.5 V - 40 C + 125 C RV-3029-C3 SMD/SMT AEC-Q200 Reel, Cut Tape, MouseReel