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: 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 RX-4045SA:AA0 PURE SN 5+/-5PPM 1K T/R 1 506In Stock
Cut Tape
45,45 kr
34,43 kr
31,61 kr
28,69 kr
Reel
26,33 kr
Min.: 1
Mult.: 1
: 1 000
Serial 4-Wire YY-MM-DD-dd HH:MM:SS (24 hr) No Backup Switching 1.7 V 5.5 V - 40 C + 85 C SMD/SMT 650 nA Reel, Cut Tape
Epson Timing Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R 703In Stock
Cut Tape
92,59 kr
72,11 kr
61,31 kr
57,15 kr
Reel
54,56 kr
Min.: 1
Mult.: 1
: 250
Serial 4-Wire 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-4045SA SMD/SMT 650 nA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock I2C Bus 5 +/-23ppm 1 052In Stock
Cut Tape
39,71 kr
29,93 kr
27,45 kr
24,75 kr
Reel
21,94 kr
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 3 uA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C 403In Stock
500Expected 2027-06-09
Cut Tape
84,71 kr
65,59 kr
54,90 kr
51,98 kr
Reel
51,86 kr
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 3 uA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR 976In Stock
Cut Tape
45,56 kr
34,43 kr
31,61 kr
28,69 kr
Reel
27,23 kr
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 750 nA Reel, Cut Tape
Epson Timing Real Time Clock RX4111CE:A3 REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM 250TR 3 235In Stock
Cut Tape
45,90 kr
34,54 kr
31,73 kr
28,01 kr
Reel
27,68 kr
Min.: 1
Mult.: 1
: 250
Serial 4-Wire, SPI Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX4111CE SMD/SMT 2 uA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX4901CE XS C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR 636In Stock
Cut Tape
56,59 kr
43,20 kr
39,71 kr
36,11 kr
Reel
31,95 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 1 uA Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR 1 346In Stock
Cut Tape
15,75 kr
12,83 kr
12,15 kr
11,48 kr
11,36 kr
Reel
11,36 kr
Min.: 1
Mult.: 1
: 1 000
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 1.5 uA Reel, Cut Tape, MouseReel

Epson Timing Real Time Clock 32.768kHz 5ppm I2C-Bus 19 651In Stock
Cut Tape
13,73 kr
9,97 kr
9,01 kr
7,99 kr
Reel
6,95 kr
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 3.5 uA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 32.768kHz 5ppm I2C-Bus
2 331In Stock
2 750Expected 2027-05-25
Cut Tape
27,34 kr
20,36 kr
18,68 kr
16,76 kr
Reel
15,98 kr
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 3.5 uA 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
28,01 kr
20,93 kr
19,13 kr
17,21 kr
Reel
15,19 kr
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 720 nA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R 1 717In Stock
2 000Expected 2027-03-22
Cut Tape
27,45 kr
20,48 kr
18,79 kr
16,88 kr
Reel
14,51 kr
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 720 nA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus 644In Stock
Cut Tape
38,36 kr
29,03 kr
26,66 kr
24,08 kr
23,06 kr
Reel
23,06 kr
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 720 nA 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
43,65 kr
32,96 kr
30,26 kr
27,34 kr
Reel
24,53 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 RX8901CE SMD/SMT 1 uA 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
43,65 kr
32,96 kr
30,26 kr
27,34 kr
Reel
23,18 kr
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 1 uA Reel, Cut Tape, MouseReel

Diodes Incorporated Real Time Clock Real Time Clock MSOP-8 T&R 2.5K 1 053In Stock
Cut Tape
14,29 kr
10,45 kr
9,52 kr
8,45 kr
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 400 nA Reel, Cut Tape
Diodes Incorporated Real Time Clock Clock VCXO 1 477In Stock
Cut Tape
14,18 kr
10,26 kr
9,27 kr
8,19 kr
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 400 nA Reel, Cut Tape
Diodes Incorporated Real Time Clock Real Time Clock 1 752In Stock
Cut Tape
11,93 kr
8,56 kr
7,75 kr
6,84 kr
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 650 nA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RTC SON 14PIN 5+/-23PPM 250TR 15In Stock
500Expected 2026-11-25
Cut Tape
37,01 kr
27,68 kr
25,31 kr
22,84 kr
Reel
21,49 kr
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 8 uA Reel, Cut Tape


Epson Timing Real Time Clock REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR 333In Stock
Cut Tape
40,05 kr
30,15 kr
27,79 kr
25,09 kr
Reel
22,16 kr
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 3 uA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock 3.0Volt -40 to 85C I2C BUS 206In Stock
250Expected 2027-01-19
Cut Tape
70,20 kr
54,00 kr
49,95 kr
44,55 kr
Reel
43,20 kr
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 350 nA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR 43In Stock
500Expected 2027-05-04
Cut Tape
39,04 kr
29,48 kr
27,11 kr
24,53 kr
Reel
23,18 kr
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 2 uA Reel, Cut Tape, MouseReel
Epson Timing Real Time Clock RX8111CE:B3 REAL TIME CLOCK I2C-BUS 3.0V 23PPM 250TR 750In Stock
1 000On Order
Cut Tape
34,88 kr
26,10 kr
23,85 kr
21,49 kr
Reel
19,24 kr
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 2 uA Reel, Cut Tape, MouseReel

Epson Timing Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK 459In Stock
Cut Tape
35,10 kr
26,10 kr
23,85 kr
21,38 kr
Reel
18,79 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-8571LC SMD/SMT 220 nA Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR 179In Stock
Cut Tape
30,15 kr
23,18 kr
21,38 kr
19,46 kr
Reel
16,99 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-8571SA SMD/SMT 200 nA Reel, Cut Tape, MouseReel