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.
Results: 890
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Description Datasheet Availability Pricing (GBP) 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

Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
20In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B SOIC-24 Backup Switching 2.7 V 3.7 V - 40 C + 85 C DS1685SN SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
74In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B SOIC-24 Backup Switching 4.5 V 5.5 V - 40 C + 85 C DS1685SN SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
30In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B EDIP-24 Integrated Battery 2.7 V 3.7 V - 40 C + 85 C DS1687 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clock
Datasheet
49In Stock
70Expected 15/06/2026
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 242 B EDIP-24 Integrated Battery 4.5 V 5.5 V 0 C + 70 C DS1687 Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
59In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB SO-24 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS17285S SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
10In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB SO-24 Backup Switching 2.7 V 3.7 V - 40 C + 85 C DS17285SN SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
11In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB EDIP-24 Integrated Battery 4.5 V 5.5 V 0 C + 70 C DS17287 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
15In 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 - 40 C + 85 C DS1744W Through Hole Tube
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) 128 kB EDIP-32 Integrated Battery 4.5 V 5.5 V - 40 C + 85 C DS1746 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
Datasheet
25In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 512 kB EDIP-32 Integrated Battery 2.97 V 3.63 V 0 C + 70 C DS1747W Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock 3V/5V Real-Time Clocks
Datasheet
6In Stock
Min.: 1
Mult.: 1

Multiplexed YY-MM-DD-dd HH:MM:SS (24 hr) 4 kB EDIP-24 Backup Switching 2.7 V 3.7 V - 40 C + 85 C DS17487 Through Hole Tube

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

Multiplexed YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 kB EDIP-24 Integrated Battery 2.7 V 3.7 V - 40 C + 85 C DS17887 Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock 1-Wire Time Chip With Interrupt
Datasheet
492In Stock
Min.: 1
Mult.: 1

Serial 1-Wire Binary Binary 4 B TSOC-6 Backup Switching 2.2 V 6 V - 40 C + 85 C DS2417P SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock 1-Wire Time Chip With Interrupt
Datasheet
103In Stock
8,000Expected 30/06/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Serial 1-Wire Binary Binary 4 B Backup Switching 2.5 V 5.5 V - 40 C + 85 C DS2417P SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock Extremely Accurate I C-Integrated RTC/TC
Datasheet
15In Stock
3,000Expected 22/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) SO-16 Backup Switching 2.3 V 5.5 V - 40 C + 85 C DS3231SN SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Extremely Accurate I C RTC with Integrat
Datasheet
146In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 236 B SO-20 Backup Switching 2.3 V 5.5 V 0 C + 70 C DS3232S SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock RTC with power management
Datasheet
168In Stock
10,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) 64 B TDFN-10 Backup Switching 1.6 V 3.6 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Nisshinbo Real Time Clock 4-Wire Real Time Clock IC
Datasheet
1,543In Stock
2,000Expected 21/07/2026
MouseReel Available
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
Datasheet
128In Stock
2,000Expected 21/07/2026
MouseReel Available
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
Datasheet
681In 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) 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
Datasheet
725In Stock
2,000Expected 05/06/2026
MouseReel Available
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
Nisshinbo Real Time Clock 2-Wire Real Time Clock IC
Datasheet
972In Stock
2,000Expected 21/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SSOP-8 Backup Switching 1.7 V 6 V - 40 C + 85 C RS5C372 SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Parallel RTC A 595-B Q4802LYPWR A 595-BQ A 595-BQ4802LYPWR
Datasheet
68In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 16 B TSSOP-28 Backup Switching 2.7 V 3.6 V 0 C + 70 C BQ4802LY SMD/SMT Tube
Texas Instruments Real Time Clock Parallel RTC
Datasheet
76In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 16 B TSSOP-28 Backup Switching 4.5 V 5.5 V 0 C + 70 C BQ4802Y SMD/SMT Tube