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 (EUR) 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
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Analog Devices / Maxim Integrated Real Time Clock Low-Current SPI/3-Wire RTCs
Datasheet
2,019In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 1M, Nonvolatile, Y2K-Compliant Timekeepi
Datasheet
20In 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 - 40 C + 85 C DS1556 Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock Phantom Time Chip
Datasheet
45In Stock
Min.: 1
Mult.: 1

Phantom Clock YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 B SO-16 Backup Switching 4.5 V 5.5 V - 40 C + 85 C DS1315SN 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 4096k NV SRAM with Phantom Clock
Datasheet
17In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 512 kB EDIP-32 2.97 V 3.63 V - 40 C + 85 C DS1251W Through Hole Tube
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 Watchdog Clocks with NV RAM Control
Datasheet
78In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) TQFP-48 Backup Switching 2.97 V 3.63 V - 40 C + 85 C DS1558W 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
Reel: 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
28In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 kB SO-24 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS17885S SMD/SMT Tube
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
3,625In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 RTC with Trickle Charger
Datasheet
204In Stock
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1340U SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
1,526In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1340U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
56In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS (24 hr) 2 kB EDIP-24 Backup Switching 2.7 V 3.7 V 0 C + 70 C DS17287 Through Hole Tube
Nisshinbo Real Time Clock 3-Wire Real Time Clock IC
Datasheet
1,989In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Serial 3-Wire 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 R2033T SMD/SMT Reel, Cut Tape, MouseReel
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 Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
19In 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 - 40 C + 85 C DS1746 Through Hole Tube
Nisshinbo Real Time Clock 4-wire Serial Interface
Datasheet
1,700In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Serial 4-Wire YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 16 B SSOP-10 Backup Switching 2 V 5.5 V - 40 C + 85 C RV5C348 SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock 1024k NV SRAM with Phantom Clock
Datasheet
3In 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 2.97 V 3.63 V 0 C + 70 C DS1248WP SMD/SMT Tray
Diodes Incorporated Real Time Clock 1.8V-5.5V Real Time Clock 12C bus
Datasheet
161In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Reel, Cut Tape, MouseReel

NXP Semiconductors Real Time Clock CMOS RTC/CALENDAR RTC IC
Datasheet
11,027In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

I2C YY-MM-DD-dd HH:MM:SS (24 hr) TSSOP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 125 C PCA8565 SMD/SMT AEC-Q100 Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm
Datasheet
3,530In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 2 B SON-8 Backup Switching 1.1 V 5.5 V - 40 C + 85 C RV-3028-C8 SMD/SMT Reel, Cut Tape, MouseReel
ECS Real Time Clock Low Power High Stability +/-3 ppm -40 +85C I C Real Time Clock 3.2 x 2.5 mm
Datasheet
2,995In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

I2C YY-MM-DD HH:MM:SS (24 hr) Backup Switching 2.5 V 5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
20In 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 - 40 C + 85 C DS1746WP SMD/SMT Tray