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: 794
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
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID 3.173In Stock
Cut Tape
Rp22.565,58
Reel
Rp18.896,38
Min.: 1
Mult.: 1
: 3.300
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TDFN-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 5.458In Stock
Cut Tape
Rp22.565,58
Reel
Rp18.896,38
Min.: 1
Mult.: 1
: 3.300
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
Microchip Technology Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID 2.090In Stock
2.500Expected 10/11/2026
Cut Tape
Rp27.335,54
Reel
Rp22.932,50
Min.: 1
Mult.: 1
: 2.500
Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Serial RTC A 595-BQ3 2000D A 595-BQ32000 A 595-BQ32000D 1.986In Stock
5.000Expected 01/02/2027
Cut Tape
Rp42.562,72
Rp31.371,66
Rp28.619,76
Rp25.500,94
Reel
Rp21.831,74
Min.: 1
Mult.: 1
: 2.500
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 Backup Switching 3 V 3.6 V - 40 C + 85 C BQ32000 SMD/SMT Reel, Cut Tape, MouseReel
ABLIC Real Time Clock 2-wire Real Time Clock 2.726In Stock
Cut Tape
Rp33.940,10
Rp24.950,56
Rp22.749,04
Rp20.180,60
Reel
Rp16.474,71
Min.: 1
Mult.: 1
: 5.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SNT-A-8 No Backup Switching 1.3 V 5.5 V - 40 C + 85 C S-35390 SMD/SMT Reel, Cut Tape, MouseReel

ABLIC Real Time Clock Real Time Clock 2.585In Stock
Cut Tape
Rp33.940,10
Rp24.950,56
Rp22.749,04
Rp20.180,60
Reel
Rp15.649,14
Min.: 1
Mult.: 1
: 4.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-8 No Backup Switching 1.3 V 5.5 V - 40 C + 85 C S-35390 SMD/SMT Reel, Cut Tape, MouseReel

NXP Semiconductors Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. 3.421In Stock
27.500On Order
Cut Tape
Rp17.428,70
Rp11.851,52
Rp10.659,03
Rp9.925,19
Reel
Rp8.347,43
Min.: 1
Mult.: 1
: 2.500
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-8 No Backup Switching 900 mV 5.5 V - 40 C + 85 C PCF85063A SMD/SMT Reel, Cut Tape, MouseReel
NXP Semiconductors Real Time Clock RTC IC with 400 kHz SPI Interface in HXSON10 package. 13.377In Stock
Cut Tape
Rp14.676,80
Rp10.622,33
Rp9.631,65
Rp8.787,73
Reel
Rp6.989,83
Min.: 1
Mult.: 1
: 4.000
SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) DFN2626-10 No Backup Switching 900 mV 5.5 V - 40 C + 85 C PCF85063B SMD/SMT Reel, Cut Tape, MouseReel

NXP Semiconductors Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP8 package. 2.901In Stock
40.000On Order
Cut Tape
Rp26.601,70
Rp19.446,76
Rp17.538,78
Rp15.557,41
Reel
Rp12.860,55
Min.: 1
Mult.: 1
: 2.500
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-8 Backup Switching 900 mV 5.5 V - 40 C + 85 C PCF85263A SMD/SMT Reel, Cut Tape, MouseReel
NXP Semiconductors Real Time Clock RTC IC with 400 kHz I2C interface featuring backup battery switch-over function in TSSOP10 package. 5.392In Stock
7.500Expected 07/12/2026
Cut Tape
Rp26.601,70
Rp19.446,76
Rp17.520,43
Rp15.484,02
Reel
Rp13.099,04
Min.: 1
Mult.: 1
: 2.500
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-10 Backup Switching 900 mV 5.5 V - 40 C + 85 C PCF85263A SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock Hi Prec I2C-Bus Real Time Clock Mod 2.437In Stock
Cut Tape
Rp82.190,08
Rp62.192,94
Rp57.239,52
Rp51.735,72
Reel
Rp46.598,84
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 1.7 V 5.5 V - 40 C + 85 C R2025S/D SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 4-Wire Real Time Clock IC 2.176In Stock
Cut Tape
Rp27.702,46
Rp20.180,60
Rp18.107,50
Rp16.071,10
Reel
Rp13.594,39
Min.: 1
Mult.: 1
: 2.000
Serial 4-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-10 No Backup Switching 1.7 V 5.5 V - 40 C + 85 C R2043T SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC 2.120In Stock
2.000On Order
Cut Tape
Rp32.655,88
Rp24.033,26
Rp21.831,74
Rp19.263,30
Reel
Rp16.236,21
Min.: 1
Mult.: 1
: 2.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SSOP-16 Backup Switching 750 mV 5.5 V - 40 C + 85 C R2051S SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC 2.268In Stock
Cut Tape
Rp30.454,36
Rp22.382,12
Rp20.180,60
Rp17.905,70
Reel
Rp15.062,07
Min.: 1
Mult.: 1
: 2.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-10 No Backup Switching 1.5 V 5.5 V - 40 C + 85 C R2221T SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Real Time Clock A 92 6-DP8573AVX/NOPB A A 926-DP8573AVX/NOPB 73In Stock
Rp612.756,40
Rp525.612,90
Rp492.957,02
Rp456.998,86
Min.: 1
Mult.: 1
Parallel YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) PLCC-28 Backup Switching 4.5 V 5.5 V - 40 C + 85 C DP8573A SMD/SMT Tube
Renesas / Intersil Real Time Clock LW PWR RTC W/RESEAL 8LD 3.210In Stock
Rp59.257,58
Rp44.213,86
Rp40.544,66
Rp36.508,54
Min.: 1
Mult.: 1
Serial 2-Wire, I2C 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 ISL12008 SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L 878In Stock
1.000Expected 26/07/2027
Cut Tape
Rp97.600,72
Rp74.301,30
Rp68.614,04
Rp62.192,94
Reel
Rp59.074,12
Min.: 1
Mult.: 1
: 250
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 Reel, Cut Tape, MouseReel
Renesas / Intersil Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS 433In Stock
Rp137.044,62
Rp105.672,96
Rp89.895,40
Rp83.841,22
Min.: 1
Mult.: 1
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-20 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12022 SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLK ENHANC CD ESD & MOISTURESIS 900In Stock
Cut Tape
Rp141.631,12
Rp109.342,16
Rp101.269,92
Rp92.280,38
Reel
Rp82.923,92
Min.: 1
Mult.: 1
: 1.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-20 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12022 SMD/SMT Reel, Cut Tape, MouseReel
Renesas / Intersil Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL 585In Stock
Cut Tape
Rp137.961,92
Rp106.406,80
Rp98.518,02
Rp89.895,40
Reel
Rp80.722,40
Min.: 1
Mult.: 1
: 1.000
Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-20 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL12022 SMD/SMT Reel, Cut Tape, MouseReel
Renesas / Intersil Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP 1.332In Stock
6.450On Order
Rp54.487,62
Rp40.728,12
Rp35.591,24
Rp33.206,26
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS (24 hr) MSOP-8 No Backup Switching 1.8 V 3.6 V - 40 C + 85 C ISL12057 SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP 6.156In Stock
Cut Tape
Rp53.570,32
Rp39.994,28
Rp36.508,54
Rp32.839,34
Reel
Rp27.885,92
Min.: 1
Mult.: 1
: 2.500
I2C YY-MM-DD-dd HH:MM:SS (24 hr) MSOP-8 No Backup Switching 1.8 V 3.6 V - 40 C + 85 C ISL12057 SMD/SMT Reel, Cut Tape, MouseReel
Renesas / Intersil Real Time Clock I2C REAL TIME CLOCK/ CALENDAR 8LD 1.354In Stock
Rp54.304,16
Rp39.443,90
Rp36.141,62
Rp32.472,42
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL1208 SMD/SMT Tube
Renesas / Intersil Real Time Clock I2C REAL TIME CLOCK/ CALENDAR 8LD 7.346In Stock
5.000Expected 22/03/2027
Cut Tape
Rp54.120,70
Rp40.361,20
Rp36.875,46
Rp33.206,26
Reel
Rp28.986,68
Min.: 1
Mult.: 1
: 1.000
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL1208 SMD/SMT Reel, Cut Tape, MouseReel
Renesas / Intersil Real Time Clock I2C REAL TIME CLOCK/ CALENDAR 8LD 2.180In Stock
Rp66.229,06
Rp49.167,28
Rp42.012,34
Rp39.994,28
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS (24 hr) MSOP-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C ISL1208 SMD/SMT Tube