Real Time Clock

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Description Datasheet Availability Pricing (TWD) 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


Epson Timing Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR
Datasheet
414In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS (24 hr) 16 B Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX6110SA SMD/SMT Reel, Cut Tape, MouseReel


Epson Timing Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus
Datasheet
63In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) Backup Switching 2.5 V 5.5 V - 40 C + 85 C RX8900SA SMD/SMT Reel, Cut Tape, MouseReel

Epson Timing Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK
Datasheet
544In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 16 B No Backup Switching 1.6 V 5.5 V - 40 C + 85 C RX-8571LC SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus
Datasheet
2,960In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

I2C Backup Switching 1.6 V 5.5 V - 40 C + 85 C AB-RTC-TH-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus
Datasheet
2,364In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

I2C SOP-8 Backup Switching 1.6 V 5.5 V - 40 C + 85 C AB-RTC-TA-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus
Datasheet
2,049In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,300

I2C Backup Switching 1.6 V 5.5 V - 40 C + 85 C AB-RTC-TC-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
ABRACON Real Time Clock Built-In XO Real Time Clock Module with I2C Bus
Datasheet
2,968In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

I2C Backup Switching 1.2 V 5.5 V - 40 C + 85 C AB-RTC-XB-32.768kHz-2 SMD/SMT Reel, Cut Tape, MouseReel
Micro Crystal Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm
Datasheet
551In Stock
1,000Expected 9/25/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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
Micro Crystal Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7mm
Datasheet
4,551In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SON-8 900 mV 5.5 V - 40 C + 85 C RV-8263-C8 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 SO8 package.
Datasheet
164,915In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SO-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 HXSON10 package.
Datasheet
49,826In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) DFN2626-10 Backup Switching 900 mV 5.5 V - 40 C + 85 C PCF85263A SMD/SMT Reel, Cut Tape, MouseReel
Texas Instruments Real Time Clock Automotive high-spee d CMOS timer with i
Datasheet
4,939In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1,001
: 3,000

SOIC-8 No Backup Switching 1.5 V 18 V - 40 C + 125 C TLC3555 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Serial I2C bus RTC
Datasheet
8,338In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Serial YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 32 B SOIC-8 Backup Switching 2.38 V 5.5 V - 40 C + 85 C M41T82 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock Serial SPI bus RTC
Datasheet
7,254In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 32 B SOX-18 Backup Switching 2.7 V 5.5 V - 40 C + 85 C M41T93 SMD/SMT Reel, Cut Tape, MouseReel
STMicroelectronics Real Time Clock 16K (2Kx8) 150ns
Datasheet
553In Stock
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 8 kB PCDIP-24 Integrated Battery 4.5 V 5.5 V 0 C + 70 C M48T12 Through Hole Tube

STMicroelectronics Real Time Clock 64K (8Kx8) 70ns
Datasheet
1,040In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 936

Parallel YY-MM-DD-dd HH:MM:SS (24 hr) 64 kB SOX-28 Backup Switching 4.5 V 5.5 V 0 C + 70 C M48T58Y SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock 64k NV SRAM with Phantom Clock
Datasheet
1,002In Stock
756Expected 9/3/2026
Min.: 1
Mult.: 1

Parallel YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 8 kB EDIP-28 Integrated Battery 4.5 V 5.5 V 0 C + 70 C DS1243Y Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock Serial Alarm Real-Time Clock
Datasheet
5,560In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 5,560
: 2,500

Serial 3-Wire, SPI YY-MM-DD HH:MM:SS (24 hr) 96 B TSSOP-20 Backup Switching 2 V 5.5 V - 40 C + 85 C DS1305EN SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock 64 x 8, Serial, I C Real-Time Clock
Datasheet
4,643In Stock
Min.: 1
Mult.: 1
Max.: 4,643

I2C YY-MM-DD HH:MM:SS:hh (12 hr, 24 hr) 56 B SOIC-8 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1307Z SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock 64 x 8, Serial, I C Real-Time Clock
Datasheet
11,274In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 11,274
: 2,500

I2C YY-MM-DD HH:MM:SS:hh (12 hr, 24 hr) 56 B SOIC-8 Backup Switching 4.5 V 5.5 V 0 C + 70 C DS1307Z SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
6,093In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 6,093
: 3,000

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1340U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle
Datasheet
5,106In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-10 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1391U SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle
Datasheet
5,340In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-10 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1394U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Total-Elapsed-Time Recorder with Alarm
Datasheet
4,297In Stock
Min.: 1
Mult.: 1
Max.: 500

I2C Binary Binary 10 B SOIC-8 No Backup Switching 2.5 V 5.5 V - 40 C + 85 C DS1682 SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Total-Elapsed-Time Recorder with Alarm
Datasheet
6,430In Stock
12,500Expected 11/9/2026
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2,500
: 2,500

Serial 2-Wire Binary Binary 10 B SOIC-8 No Backup Switching 2.5 V 5.5 V - 40 C + 85 C DS1682 SMD/SMT Reel, Cut Tape, MouseReel