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Real Time Clock

Real Time Clocks are in stock with same-day shipping at Mouser 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.
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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	Interface Type	Date Format	Time Format	Package/Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Packaging
Real Time Clock 3V/5V Real-Time Clock DS1687-3IND+ Analog Devices / Maxim Integrated 1: $47.72 30In Stock	Mfr. Part No. DS1687-3IND+ Mouser Part No 700-DS1687-3IND	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	30In Stock	$47.72 $37.96 $35.94 $33.42 View $32.26 $31.32 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-24	Integrated Battery	2.7 V	3.7 V	- 40 C	+ 85 C	DS1687	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clock DS1687-5+ Analog Devices / Maxim Integrated 1: $40.16 63In Stock	Mfr. Part No. DS1687-5+ Mouser Part No 700-DS1687-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	63In Stock	$40.16 $32.11 $30.08 $27.87 View $26.82 $26.18 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-24	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1687	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17285SN-3+ Analog Devices / Maxim Integrated 1: $17.14 10In Stock	Mfr. Part No. DS17285SN-3+ Mouser Part No 700-DS17285SN-3	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	10In Stock	$17.14 $16.77 $16.40 $16.08 View $15.83 $15.59 $15.35 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	2.7 V	3.7 V	- 40 C	+ 85 C	DS17285SN	SMD/SMT	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17287-5+ Analog Devices / Maxim Integrated 1: $46.27 1In Stock	Mfr. Part No. DS17287-5+ Mouser Part No 700-DS17287-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	1In Stock	$46.27 $36.76 $34.76 $32.31 View $31.18 $30.80 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-24	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS17287	Through Hole	Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1744W-120+ Analog Devices / Maxim Integrated 1: $84.95 15In Stock	Mfr. Part No. DS1744W-120+ Mouser Part No 700-DS1744W-120	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	15In Stock	$84.95 $70.16 $66.45 $65.62 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-28	Integrated Battery	2.97 V	3.63 V	0 C	+ 70 C	DS1744W	Through Hole	Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1744W-120IND+ Analog Devices / Maxim Integrated 1: $89.26 15In Stock	Mfr. Part No. DS1744W-120IND+ Mouser Part No 700-DS1744W-120IND	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	15In Stock	$89.26 $73.73 $69.82 $68.95 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-28	Integrated Battery	2.97 V	3.63 V	- 40 C	+ 85 C	DS1744W	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17485S-5+ Analog Devices / Maxim Integrated 1: $19.42 5In Stock	Mfr. Part No. DS17485S-5+ Mouser Part No 700-DS17485S-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	5In Stock	$19.42 $19.00 $18.59 $18.21 View $17.94 $17.67 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS17485S	SMD/SMT	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17887-3IND+ Analog Devices / Maxim Integrated 1: $56.83 1In Stock	Mfr. Part No. DS17887-3IND+ Mouser Part No 700-DS17887-3IND+	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	1In Stock	$56.83 $55.58 $54.37 $53.28 View $52.47 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-24	Integrated Battery	2.7 V	3.7 V	- 40 C	+ 85 C	DS17887	Through Hole	Tube
Real Time Clock 1-Wire Time Chip With Interrupt DS2417P+ Analog Devices / Maxim Integrated 1: $6.69 185In Stock	Mfr. Part No. DS2417P+ Mouser Part No 700-DS2417P	Analog Devices / Maxim Integrated	Real Time Clock 1-Wire Time Chip With Interrupt	Datasheet	185In Stock	$6.69 $5.10 $4.71 $4.26 View $4.04 $3.92 $3.86 $3.82 Quote	Min.: 1 Mult.: 1	Serial 1-Wire	Binary	Binary	TSOC-6	Backup Switching	2.2 V	6 V	- 40 C	+ 85 C	DS2417P	SMD/SMT	Tube
Real Time Clock Extremely Accurate I C-Integrated RTC/TC DS3231SN#T&R Analog Devices / Maxim Integrated 1: $22.70 1In Stock	Mfr. Part No. DS3231SN#T&R Mouser Part No 700-DS3231SN#T&R-	Analog Devices / Maxim Integrated	Real Time Clock Extremely Accurate I C-Integrated RTC/TC Learn More about Analog Devices / Maxim Integrated maximds3231m	Datasheet	1In Stock	Cut Tape $22.70 $17.98 $16.80 $15.46 View $15.27 $14.78 $14.12 Quote MouseReel Available	Min.: 1 Mult.: 1	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
Real Time Clock Extremely Accurate I C RTC with Integrat DS3232S#T&R Analog Devices / Maxim Integrated 1: $20.63 13In Stock	Mfr. Part No. DS3232S#T&R Mouser Part No 700-DS3232S#T&R-	Analog Devices / Maxim Integrated	Real Time Clock Extremely Accurate I C RTC with Integrat	Datasheet	13In Stock	Cut Tape $20.63 $16.16 $15.04 $13.80 View $13.68 $13.65 $11.60 MouseReel Available	Min.: 1 Mult.: 1				SO-20				0 C	+ 70 C	DS3232S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock ULTRA LO PWR CLK/CAL RTC IC PCF8563T/F4,118 NXP Semiconductors 1: $2.35 30In Stock	Mfr. Part No. PCF8563T/F4,118 Mouser Part No 771-PCF8563TD-T	NXP Semiconductors	Real Time Clock ULTRA LO PWR CLK/CAL RTC IC	Datasheet	30In Stock	Cut Tape $2.35 $1.73 $1.56 $1.40 $1.18 View $1.32 $1.27 $1.26 $1.16 MouseReel Available	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	PCF8563	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low Power High Stability +/-3 ppm -40 +85C I C Real Time Clock 3.2 x 2.5 mm ECS-RTC-3225-5699C3-TR ECS 1: $7.22 2,348In Stock	Mfr. Part No. ECS-RTC-3225-5699C3-TR Mouser Part No 520-RTC-32255699C3TR	ECS	Real Time Clock Low Power High Stability +/-3 ppm -40 +85C I C Real Time Clock 3.2 x 2.5 mm Learn More about ECS rtc3225 rtcsop8 rtcs	Datasheet	2,348In Stock	Cut Tape $7.22 $5.51 $5.07 $4.60 View Reel $4.08 $4.38 $4.30 $4.28 $4.08 MouseReel Available	Min.: 1 Mult.: 1 : 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
Real Time Clock Low Power High Stability 5 ppm -40 +85 C I C Real Time Clock 3.2 x 2.5 mm ECS-RTC-3225-5699HS-TR ECS 1: $7.71 783In Stock	Mfr. Part No. ECS-RTC-3225-5699HS-TR Mouser Part No 520-RTC-32255699HSTR	ECS	Real Time Clock Low Power High Stability 5 ppm -40 +85 C I C Real Time Clock 3.2 x 2.5 mm Learn More about ECS rtc 3225 5699hs rtc	Datasheet	783In Stock	Cut Tape $7.71 $5.89 $5.43 $4.92 Reel $4.45 View $4.69 $4.58 $4.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real-time Clock module PT7C43390LEX Diodes Incorporated 1: $2.42 324In Stock	Mfr. Part No. PT7C43390LEX Mouser Part No 729-PT7C43390LEX	Diodes Incorporated	Real Time Clock 2-Wire Real-time Clock module Learn More about Diodes Incorporated diodes timing solutions	Datasheet	324In Stock	Cut Tape $2.42 $1.78 $1.62 $1.44 View Reel $1.21 $1.35 $1.29 $1.21 MouseReel Available	Min.: 1 Mult.: 1 : 2,500												Reel, Cut Tape, MouseReel
Real Time Clock RX-4045SA:AA0 PURE SN 5+/-5PPM 1K T/R RX-4045SAAA0 PURE SN Epson Timing 1: $6.39 1,506In Stock	Mfr. Part No. RX-4045SAAA0 PURE SN Mouser Part No 732-R4045SAAA0PURESN	Epson Timing	Real Time Clock RX-4045SA:AA0 PURE SN 5+/-5PPM 1K T/R Learn More about Epson Timing epson rx 4045sa realtime clock module	Datasheet	1,506In Stock	Cut Tape $6.39 $4.84 $4.45 $4.03 Reel $3.70 View $3.93 $3.85 $3.35	Min.: 1 Mult.: 1 : 1,000	Serial 4-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape
Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R RX-4045SAAA3 PURE SN Epson Timing 1: $13.02 703In Stock	Mfr. Part No. RX-4045SAAA3 PURE SN Mouser Part No 732-RX-4045SA:AA3S	Epson Timing	Real Time Clock RX-4045SA:AA3 PURE SN 5+/-5PPM 250 T/R	Datasheet	703In Stock	Cut Tape $13.02 $10.13 $8.62 $8.04 Reel $7.67 View $7.62 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 4-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	RX-4045SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C Bus 5 +/-23ppm RX-8025SA:AA0 Epson Timing 1: $5.58 1,052In Stock	Mfr. Part No. RX-8025SA:AA0 Mouser Part No 732-RX-8025SA:AA0	Epson Timing	Real Time Clock I2C Bus 5 +/-23ppm Learn More about Epson Timing epson rx 8025sa rtc modules	Datasheet	1,052In Stock	Cut Tape $5.58 $4.20 $3.86 $3.48 Reel $3.09 View $3.30 $3.28 $3.02 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	RX-8025SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C RX-8025SA:AA3 Epson Timing 1: $11.90 453In Stock 500Expected 17/5/2027	Mfr. Part No. RX-8025SA:AA3 Mouser Part No 732-RX-8025SA:AA3	Epson Timing	Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C Learn More about Epson Timing epson rx 8025sa rtc modules	Datasheet	453In Stock 500Expected 17/5/2027	Cut Tape $11.90 $9.22 $7.72 $7.30 Reel $7.29 View $7.19 $7.00 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	RX-8025SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR RX-8803SA:UB3 PURE SN Epson Timing 1: $6.41 976In Stock	Mfr. Part No. RX-8803SA:UB3 PURE SN Mouser Part No 732-RX-8803SAUB3	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR	Datasheet	976In Stock	Cut Tape $6.41 $4.84 $4.45 $4.03 Reel $3.82 View $3.66 $3.43	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8803SA	SMD/SMT	Reel, Cut Tape
Real Time Clock RX4111CE:A3 REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM 250TR RX4111CE A3 Epson Timing 1: $6.45 3,235In Stock	Mfr. Part No. RX4111CE A3 Mouser Part No 732-RX4111CEA3	Epson Timing	Real Time Clock RX4111CE:A3 REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM 250TR Learn More about Epson Timing epson rx4111ce rx8111ce rtc modules	Datasheet	3,235In Stock	Cut Tape $6.45 $4.86 $4.46 $3.93 Reel $3.89 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 4-Wire, SPI				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX4111CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS C06 Epson Timing 1: $7.96 636In Stock	Mfr. Part No. RX4901CE XS C06 Mouser Part No 732-RX4901CEXSC06	Epson Timing	Real Time Clock RX4901CE XS C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	636In Stock	Cut Tape $7.96 $6.07 $5.59 $5.07 View Reel $4.49 $4.73 $4.52 $4.50 $4.49 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR RX6110SA:B0 PURE SN Epson Timing 1: $2.22 1,346In Stock	Mfr. Part No. RX6110SA:B0 PURE SN Mouser Part No 732-RX6110SAB0PURESN	Epson Timing	Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR	Datasheet	1,346In Stock	Cut Tape $2.22 $1.81 $1.71 $1.62 Reel $1.59 View $1.60 $1.58 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX6110SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz 5ppm I2C-Bus RX8130CE B0 Epson Timing 1: $1.93 16,409In Stock	Mfr. Part No. RX8130CE B0 Mouser Part No 732-RX8130CEB0	Epson Timing	Real Time Clock 32.768kHz 5ppm I2C-Bus	Datasheet	16,409In Stock	Cut Tape $1.93 $1.40 $1.27 $1.12 Reel $0.978 View $1.05 $1.01 $0.934 $0.919 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.25 V	5.5 V	- 40 C	+ 85 C	RX8130CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz 5ppm I2C-Bus RX8130CE B3 Epson Timing 1: $3.84 1,634In Stock	Mfr. Part No. RX8130CE B3 Mouser Part No 732-RX8130CEB3	Epson Timing	Real Time Clock 32.768kHz 5ppm I2C-Bus	Datasheet	1,634In Stock	Cut Tape $3.84 $2.86 $2.62 $2.35 Reel $2.24 View $2.14 $2.05 $1.99 $1.97 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.25 V	5.5 V	- 40 C	+ 85 C	RX8130CE	SMD/SMT	Reel, Cut Tape, MouseReel