Real Time Clock

Real Time Clock
Real Time Clocks (RTCs) are available at Mouser Electronics 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. Please view our large selection of real time clocks below.
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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model RTC Bus Interface
Date Format
Time Format
RTC Memory Size
Package/Case
Battery Backup Switching
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Series
Mounting Style
Qualification
Packaging
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
1,509In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 16 B SSOP-8 Backup Switching 2 V 6 V - 40 C + 85 C RS5C372 SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock SAMAY A 595-BQ32002D R A 595-BQ32002DR A A 595-BQ32002DR
Datasheet
760In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 3 V 3.6 V - 40 C + 85 C BQ32002 SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 1024k NV SRAM with Phantom Clock
Datasheet
80In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 128 kB PowerCap Module-34 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1248Y SMD/SMT Tray
Analog Devices / Maxim Integrated Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi
Datasheet
16In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB EDIP-32 Integrated Battery 4.5 V 5.5 V 0 C + 70 C DS1556 Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
132In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B SO-24 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1685S SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Portable System Controller
Datasheet
148In Stock
Min.: 1
Mult.: 1

Serial 3-Wire Binary Binary TSSOP-20 Backup Switching 2.7 V 3.3 V 0 C + 70 C DS1673E SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
90In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B TSSOP-24 Backup Switching 2.7 V 3.7 V - 40 C + 85 C DS1685EN SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Current SPI/3-Wire RTCs
Datasheet
170In Stock
Min.: 1
Mult.: 1

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 96 B TDFN-EP-14 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1343D SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Current SPI/3-Wire RTCs
Datasheet
165In Stock
Min.: 1
Mult.: 1

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 96 B TSSOP-20 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1343E SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi
Datasheet
39In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB Integrated Battery 2.97 V 3.63 V 0 C + 70 C DS1556W Through Hole Tube
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC 12,021In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Serial 2-Wire, I2C BCD BCD QFN1818-12 No Backup Switching 1.5 V 5.5 V - 40 C + 85 C R2223L SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
290In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 1.71 V 1.89 V - 40 C + 85 C DS1340U SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
23In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB EDIP-32 Integrated Battery 2.97 V 3.63 V - 40 C + 85 C DS1746W Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
76In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 128 kB PowerCap Module-34 Backup Switching 2.97 V 3.63 V 0 C + 70 C DS1746WP SMD/SMT Tray
Micro Crystal Real Time Clock 32.768kHz SPI Time Acc. 6ppm
Datasheet
510In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SPI YY-MM-DD-dd HH:MM:SS (24 hr) 8 B Backup Switching 1.3 V 5.5 V - 40 C + 85 C RV-3149 SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C RTC with 56-Byte NV RAM
Datasheet
2,786In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial 2-Wire, I2C HH:MM:SS (24 hr) 56 B SOIC-8 2.7 V 3.3 V - 40 C + 85 C DS1338Z SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTCs for High-ESR Crystals
Datasheet
322In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1341U SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep
Datasheet
37In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 32 kB PowerCap Module-34 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1554P SMD/SMT Tray
Analog Devices / Maxim Integrated Real Time Clock I C 32-Bit Binary Counter RTC
Datasheet
2,080In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial 2-Wire, I2C Binary Binary SOIC-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1672S SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
53In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 4 kB EDIP-24 Integrated Battery 4.5 V 5.5 V 0 C + 70 C DS17487 Through Hole Tube
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
3,620In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) QFN023023-16 Backup Switching 750 mV 5.5 V - 40 C + 85 C R2051L SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
2,433In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1339U SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock Low-Current SPI/3-Wire RTCs
Datasheet
2,019In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 96 B TDFN-EP-14 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1344D SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C, 32-Bit, Binary Counter Clock with 64-Bit ID
Datasheet
1,337In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Serial 2-Wire, I2C Binary Binary 4 B uSOP-8 No Backup Switching 2.4 V 5.5 V - 40 C + 85 C DS1372U+ SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
28In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 32 kB EDIP-28 Integrated Battery 2.97 V 3.63 V 0 C + 70 C DS1744W Through Hole Tube