Real Time Clocks for Instrument Clusters

Real Time Clocks (RTCs) are IC devices that keep track of time. A typical RTC can provide the time of day as well as the date via a serial bus such as I2C or SPI.  Although similar in many ways, RTCs should not be confused with clock generators, which are used to synchronize various parts of a circuit.

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Results: 22
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 RTC Bus Interface Date Format Time Format Package/Case Battery Backup Switching Supply Voltage - Min Supply Voltage - Max Minimum Operating Temperature Maximum Operating Temperature Series Mounting Style Time Keeping Current Packaging
Renesas / Intersil Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP 1.952In Stock
Rp51.736
Rp38.527
Rp35.408
Rp31.739
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 No Backup Switching 1.8 V 3.6 V - 40 C + 85 C ISL12057 SMD/SMT Tube
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 12.171In Stock
Rp20.364
Rp19.263
Rp18.346
Min.: 1
Mult.: 1
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 Tube

STMicroelectronics Real Time Clock Serial SPI bus RTC 1.029In Stock
Cut Tape
Rp141.264
Rp112.461
Rp100.903
Rp92.097
Reel
Rp80.172
Min.: 1
Mult.: 1
: 1.000
Serial YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) Backup Switching 2.38 V 5.5 V - 40 C + 85 C M41T93 SMD/SMT Reel, Cut Tape, MouseReel

STMicroelectronics Real Time Clock Serial SPI bus RTC 165In Stock
Cut Tape
Rp148.786
Rp114.663
Rp106.223
Rp96.867
Reel
Rp86.777
Min.: 1
Mult.: 1
: 1.000
SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) QFN-16 Backup Switching 3 V 5.5 V - 40 C + 85 C M41T93 SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-64 3.266In Stock
Rp20.731
Rp19.263
Rp18.896
Min.: 1
Mult.: 1
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 Tube

STMicroelectronics Real Time Clock SPI RTC 32.768 kHz 365nA 2.0V to 5.5V 1.083In Stock
Cut Tape
Rp153.739
Rp118.515
Rp109.709
Rp100.169
Reel
Rp89.712
Min.: 1
Mult.: 1
: 1.000
SPI 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 M41T93 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Serial SPI bus RTC 757In Stock
Cut Tape
Rp195.752
Rp152.822
Rp142.182
Rp130.440
Reel
Rp118.332
Min.: 1
Mult.: 1
: 1.000
SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOX-18 Backup Switching 2.38 V 5.5 V - 40 C + 85 C M41T93 SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID 3.206In Stock
Cut Tape
Rp22.566
Reel
Rp18.896
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

NXP Semiconductors Real Time Clock RTC IC with 400 kHz I2C interface in TSSOP8 package. 7.498In Stock
27.500On Order
Cut Tape
Rp17.796
Rp12.475
Rp11.191
Rp9.925
Reel
Rp8.347
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
Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L 1.885In Stock
Cut Tape
Rp97.601
Rp74.301
Rp68.614
Rp62.193
Reel
Rp59.074
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 900In Stock
Cut Tape
Rp141.631
Rp109.342
Rp101.270
Rp92.280
Reel
Rp82.924
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 1.401In Stock
7.500Expected 16/04/2027
Cut Tape
Rp52.103
Rp38.894
Rp35.591
Rp31.922
Reel
Rp27.152
Min.: 1
Mult.: 1
: 2.500
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-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 REAL TIME CLK W/ ALARM DS1337 COMP 6.256In Stock
Cut Tape
Rp53.570
Rp39.994
Rp36.509
Rp32.839
Reel
Rp27.886
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
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID 767In Stock
Rp19.814
Rp18.529
Rp18.126
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
STMicroelectronics Real Time Clock Serial SPI bus RTC 65In Stock
1.000Expected 16/11/2026
Cut Tape
Rp179.974
Rp140.163
Rp130.257
Rp116.864
Reel
Rp108.058
Min.: 1
Mult.: 1
: 1.000
SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOX-18 Backup Switching 3 V 5.5 V - 40 C + 85 C M41T93 SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Timer Control Periph eral A 926-DP8570AV A 926-DP8570AVX/NOPB 7In Stock
Rp973.989
Rp797.868
Rp745.398
Rp709.256
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 DP8570A SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLK & TEMP COMPENSATED CRYSTAL 585In Stock
Cut Tape
Rp137.962
Rp106.407
Rp98.518
Rp89.895
Reel
Rp80.722
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 97In Stock
6.450On Order
Rp53.570
Rp39.994
Rp35.408
Rp32.656
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 & TIMR FUNCTNS 305In Stock
Rp52.103
Rp38.894
Rp35.591
Rp31.922
Min.: 1
Mult.: 1
I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 No Backup Switching 1.8 V 3.6 V - 40 C + 85 C ISL12058 SMD/SMT Tube
Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
6.860On Order
Rp97.601
Rp74.301
Rp68.614
Rp62.193
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
Renesas / Intersil Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
2.467Expected 12/01/2027
Cut Tape
Rp95.766
Rp72.834
Rp67.146
Rp60.909
Reel
Rp56.322
Min.: 1
Mult.: 1
: 2.500
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 W/MFK IMPROVED ESD AIR Non-Stocked Lead-Time 22 Weeks
Rp82.924
Rp80.906
Min.: 760
Mult.: 760
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