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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 (PHP) 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 RV-8803-C7, Real-Time Clock, I C-bus, 3ppm @ -40 to +85C (SMD 3.2 x 1.5 x 0.8) RV-8803-C7-TA-QC Micro Crystal 1: ₱201.23 58In Stock 5,000On Order	Mfr. Part # RV-8803-C7-TA-QC Mouser Part # 428-RV-8803-C7-TA-QC	Micro Crystal	Real Time Clock RV-8803-C7, Real-Time Clock, I C-bus, 3ppm @ -40 to +85C (SMD 3.2 x 1.5 x 0.8)	Datasheet	58In Stock 5,000On Order On Order Ship Dates Mfr. #: RV-8803-C7-TA-QC Stock: 58 Can Ship Immediately On Order: 2,000 Expected 02/04/2027 1,000 Expected 16/04/2027 2,000 Expected 27/09/2027 Factory Lead-Time: 45 Weeks	Cut Tape ₱201.23 ₱149.69 ₱136.81 ₱122.70 ₱119.63 Reel ₱101.23	Min.: 1 Mult.: 1 : 1,000										RV-8803-C7	SMD/SMT	Reel, Cut Tape
Real Time Clock .9RTC BASE 1338-31DVGI8 Renesas Electronics 1: ₱198.16 27In Stock 5,000Expected 04/04/2028	Mfr. Part # 1338-31DVGI8 Mouser Part # 972-1338-31DVGI8	Renesas Electronics	Real Time Clock .9RTC BASE	Datasheet	27In Stock 5,000Expected 04/04/2028	Cut Tape ₱198.16 ₱147.85 ₱134.97 ₱121.47 View Reel ₱105.52 ₱114.72 ₱112.27 ₱106.14 ₱105.52 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	MSOP-8	Backup Switching	1.3 V	3.7 V	- 40 C	+ 85 C	1338	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz SPI Time Acc. 6ppm RV-3149-C3 32.768kHz OPTION A TA QC Micro Crystal 1: ₱265.65 354In Stock	Mfr. Part # RV-3149-C3 32.768kHz OPTION A TA QC Mouser Part # 428-203658-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	354In Stock	Cut Tape ₱265.65 ₱200.00 ₱184.05 ₱165.65 Reel ₱150.92 View ₱157.67 ₱156.44 ₱149.08 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	RV-3149	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS ISL12058IRTZ Renesas / Intersil 1: ₱173.01 953In Stock	Mfr. Part # ISL12058IRTZ Mouser Part # 968-ISL12058IRTZ	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS	Datasheet	953In Stock	₱173.01 ₱128.84 ₱118.41 ₱105.52 View ₱99.39 ₱97.55 ₱93.25 ₱90.80 ₱88.34	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TDFN-8	No Backup Switching	1.8 V	3.6 V	- 40 C	+ 85 C	ISL12058	SMD/SMT	Tube
Real Time Clock Real-time Clock IC PT7C4337AWEX Diodes Incorporated 1: ₱74.85 327In Stock	Mfr. Part # PT7C4337AWEX Mouser Part # 729-PT7C4337AWEX	Diodes Incorporated	Real Time Clock Real-time Clock IC Learn More about Diodes Incorporated diodes timing solutions	Datasheet	327In Stock	Cut Tape ₱74.85 ₱53.99 ₱48.90 ₱43.19 View Reel ₱39.26 ₱40.49 ₱39.33 ₱39.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		No Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low Power Consumption I C RTC 3.2 x 2.5 x 1.0 mm (lwh) ECS-RTC-3225-5609-TR ECS 1: ₱311.04 11,700In Stock	Mfr. Part # ECS-RTC-3225-5609-TR Mouser Part # 520-ECSRTC32255609TR	ECS	Real Time Clock Low Power Consumption I C RTC 3.2 x 2.5 x 1.0 mm (lwh) Learn More about ECS rtc real time clock module	Datasheet	11,700In Stock	Cut Tape ₱311.04 ₱236.81 ₱218.41 ₱198.16 Reel ₱173.62 View ₱188.34 ₱178.53 ₱171.17 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5 V	- 20 C	+ 80 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XLA-32.768KHZ-2-T1 ABRACON 1: ₱188.34 900In Stock New Product	Mfr. Part # AB-RTC-XLA-32.768KHZ-2-T1 Mouser Part # 815-TCXLA32768KHZ2T1 New Product	ABRACON	Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 Learn More about ABRACON ab rtc xl low power rtcs	Datasheet	900In Stock	Cut Tape ₱188.34 ₱141.11 ₱128.84 ₱115.95 Reel ₱101.23 View ₱109.82 ₱106.14 ₱99.39 ₱97.55 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C		HH:MM:SS (24 hr)	SON-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XLA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock w/242x8 NVSRAM Alarm Wake-up BQ3285ES Texas Instruments 1: ₱1,121.48 85In Stock End of Life	Mfr. Part # BQ3285ES Mouser Part # 595-BQ3285ES End of Life	Texas Instruments	Real Time Clock w/242x8 NVSRAM Alarm Wake-up	Datasheet	85In Stock	₱1,121.48 ₱889.58 ₱830.07 ₱766.88 View ₱731.29 ₱717.80 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-24		4.5 V	5.5 V	0 C	+ 70 C	BQ3285E	SMD/SMT	Tube
Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi DS1556-70+ Analog Devices / Maxim Integrated 1: ₱5,071.19 16In Stock	Mfr. Part # DS1556-70+ Mouser Part # 700-DS1556-70	Analog Devices / Maxim Integrated	Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi	Datasheet	16In Stock	₱5,071.19 ₱4,223.33 ₱3,975.48 ₱3,755.85 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1556	Through Hole	Tube
Real Time Clock I C RTC with Trickle Charger DS1340U-18+ Analog Devices / Maxim Integrated 1: ₱471.17 259In Stock	Mfr. Part # DS1340U-18+ Mouser Part # 700-DS1340U-18	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	259In Stock	₱471.17 ₱363.19 ₱325.16 ₱306.14	Min.: 1 Mult.: 1 Max.: 207	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
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1746W-120IND+ Analog Devices / Maxim Integrated 1: ₱4,683.46 23In Stock	Mfr. Part # DS1746W-120IND+ Mouser Part # 700-DS1746W-120IND	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	23In Stock	₱4,683.46 ₱3,868.73 ₱3,654.01 ₱3,477.93	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	2.97 V	3.63 V	- 40 C	+ 85 C	DS1746W	Through Hole	Tube
Real Time Clock Real-time Clock Mod I2C Bus PT7C4307WEX Diodes Incorporated 1: ₱80.37 4,411In Stock Factory Special Order	Mfr. Part # PT7C4307WEX Mouser Part # 729-PT7C4307WEX Factory Special Order	Diodes Incorporated	Real Time Clock Real-time Clock Mod I2C Bus Learn More about Diodes Incorporated diodes timing solutions	Datasheet	4,411In Stock	Cut Tape ₱80.37 ₱57.85 ₱52.39 ₱46.26 Reel ₱38.59 View ₱43.37 ₱41.66 ₱39.75 ₱37.67 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	2 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep DS1554P-70+ Analog Devices / Maxim Integrated 1: ₱2,096.94 37In Stock	Mfr. Part # DS1554P-70+ Mouser Part # 700-DS1554P-70	Analog Devices / Maxim Integrated	Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep	Datasheet	37In Stock	₱2,096.94 ₱2,050.32 ₱2,006.15 ₱1,965.65 View ₱1,935.59 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PowerCap Module-34	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS1554P	SMD/SMT	Tray
Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi DS1556W-120IND+ Analog Devices / Maxim Integrated 1: ₱4,789.59 14In Stock	Mfr. Part # DS1556W-120IND+ Mouser Part # 700-DS1556W-120IND	Analog Devices / Maxim Integrated	Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi	Datasheet	14In Stock	₱4,789.59 ₱3,988.98 ₱3,754.62 ₱3,547.26 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	2.97 V	3.63 V	- 40 C	+ 85 C	DS1556W	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17487-5+ Analog Devices / Maxim Integrated 1: ₱2,236.21 49In Stock	Mfr. Part # DS17487-5+ Mouser Part # 700-DS17487-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	49In Stock	₱2,236.21 ₱1,811.05 ₱1,703.08 ₱1,633.14 View ₱1,531.30 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	DS17487	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17885S-5+ Analog Devices / Maxim Integrated 1: ₱2,296.33 28In Stock	Mfr. Part # DS17885S-5+ Mouser Part # 700-DS17885S-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	28In Stock	₱2,296.33 ₱1,858.91 ₱1,749.70 ₱1,640.50 View ₱1,572.40 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	DS17885S	SMD/SMT	Tube
Real Time Clock Low-Current SPI/3-Wire RTCs DS1343E-33+ Analog Devices / Maxim Integrated 1: ₱501.23 155In Stock	Mfr. Part # DS1343E-33+ Mouser Part # 700-DS1343E-33+	Analog Devices / Maxim Integrated	Real Time Clock Low-Current SPI/3-Wire RTCs Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	155In Stock	₱501.23 ₱386.51 ₱357.67 ₱325.77	Min.: 1 Mult.: 1 Max.: 124	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-20	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1343E	SMD/SMT	Tube
Real Time Clock I C RTC with 56-Byte NV RAM DS1338U-3+ Analog Devices / Maxim Integrated 1: ₱407.36 119In Stock	Mfr. Part # DS1338U-3+ Mouser Part # 700-DS1338U-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with 56-Byte NV RAM	Datasheet	119In Stock	₱407.36 ₱312.27 ₱265.03 ₱261.96	Min.: 1 Mult.: 1 Max.: 215	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	DS1338U	SMD/SMT	Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1746WP-120IND+ Analog Devices / Maxim Integrated 1: ₱3,269.96 20In Stock	Mfr. Part # DS1746WP-120IND+ Mouser Part # 700-DS1746WP-120IND	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	20In Stock	₱3,269.96 ₱3,197.56 ₱3,128.24 ₱3,065.66 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PowerCap Module-34	Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1746WP	SMD/SMT	Tray
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R DS1747W-120+ Analog Devices / Maxim Integrated 1: ₱5,054.63 21In Stock	Mfr. Part # DS1747W-120+ Mouser Part # 700-DS1747W-120	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R	Datasheet	21In Stock	₱5,054.63 ₱4,209.22 ₱3,962.60 ₱3,742.96 Quote Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	2.97 V	3.63 V	0 C	+ 70 C	DS1747W	Through Hole	Tube
Real Time Clock I C RTC with Trickle Charger DS1340U-3+ Analog Devices / Maxim Integrated 1: ₱230.68 204In Stock	Mfr. Part # DS1340U-3+ Mouser Part # 700-DS1340U-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	204In Stock	₱230.68 ₱225.77 ₱220.86 ₱216.57	Min.: 1 Mult.: 1 Max.: 163	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
Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi DS1556P-70+ Analog Devices / Maxim Integrated 1: ₱3,143.57 20In Stock	Mfr. Part # DS1556P-70+ Mouser Part # 700-DS1556P-70	Analog Devices / Maxim Integrated	Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi	Datasheet	20In Stock	₱3,143.57 ₱3,074.25 ₱3,007.38 ₱2,947.25 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS1556P	SMD/SMT	Tray
Real Time Clock 3V/5V Real-Time Clocks DS17287-3+ Analog Devices / Maxim Integrated 1: ₱2,060.13 54In Stock	Mfr. Part # DS17287-3+ Mouser Part # 700-DS17287-3	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	54In Stock	₱2,060.13 ₱1,655.84 ₱1,569.33 ₱1,480.38 View ₱1,410.44 ₱1,409.82 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-24	Backup Switching	2.7 V	3.7 V	0 C	+ 70 C	DS17287	Through Hole	Tube
Real Time Clock 5+/-23PPM RTC 250TR RX-8571LC:B3 PURE SN Epson Timing 1: ₱446.01 844In Stock	Mfr. Part # RX-8571LC:B3 PURE SN Mouser Part # 732-RX-8571LCB3	Epson Timing	Real Time Clock 5+/-23PPM RTC 250TR Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	844In Stock	Cut Tape ₱446.01 ₱344.17 ₱309.20 ₱286.50 Reel ₱263.81 View ₱260.74 ₱260.12 ₱248.47 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	VSOJ-12	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571LC	SMD/SMT	Reel, Cut Tape
Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR RX-8803LC:UB3 PURE SN Epson Timing 1: ₱716.57 469In Stock	Mfr. Part # RX-8803LC:UB3 PURE SN Mouser Part # 732-RX-8803LCUB3	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR Learn More about Epson Timing epson rx 8803lc trc module	Datasheet	469In Stock	Cut Tape ₱716.57 ₱561.35 ₱522.70 ₱451.54 Reel ₱442.95 View ₱438.04 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	VSOJ-12	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8803LC	SMD/SMT	Reel, Cut Tape