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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 (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	RTC Bus Interface	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 Clocks DS17487-5+ Analog Devices / Maxim Integrated 1: £27.36 49In Stock	Mfr. Part No. DS17487-5+ Mouser Part No 700-DS17487-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	49In Stock	£27.36 £22.16 £20.84 £19.98 View £18.74 £18.73	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: £28.10 28In Stock	Mfr. Part No. DS17885S-5+ Mouser Part No 700-DS17885S-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	28In Stock	£28.10 £22.75 £21.41 £20.52 View £19.24 £19.23	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 Real-time Clock Mod I2C Bus PT7C4307WEX Diodes Incorporated 1: £0.986 4,661In Stock Factory Special Order	Mfr. Part No. PT7C4307WEX Mouser Part No 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	4,661In Stock	Cut Tape £0.986 £0.708 £0.641 £0.566 Reel £0.472 View £0.531 £0.51 £0.486 £0.461 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 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA0 PURE SN Epson Timing 1: £3.68 919In Stock	Mfr. Part No. RX8900SA UA0 PURE SN Mouser Part No 732-RX8900SAUA0SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	919In Stock	Cut Tape £3.68 £2.77 £2.55 £2.30 Reel £2.03 View £2.17 £1.98 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR RX-8803LC:UB3 PURE SN Epson Timing 1: £8.76 469In Stock	Mfr. Part No. RX-8803LC:UB3 PURE SN Mouser Part No 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 £8.76 £6.87 £6.40 £5.53 Reel £5.42 View £5.34 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
Real Time Clock RX8130CE:BX REAL TIME CLOCK +/-23PPM ANY TR RX8130CE BX Epson Timing 1: £2.12 1,627In Stock	Mfr. Part No. RX8130CE BX Mouser Part No 732-RX8130CEBX	Epson Timing	Real Time Clock RX8130CE:BX REAL TIME CLOCK +/-23PPM ANY TR	Datasheet	1,627In Stock	Cut Tape £2.12 £1.58 £1.45 Reel £1.28 £1.21 View £1.20 £1.13 £1.10 £1.07	Min.: 1 Mult.: 1 : 100	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
Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900CE UA3 Epson Timing 1: £7.29 1,019In Stock	Mfr. Part No. RX8900CE UA3 Mouser Part No 732-RX8900CEUA3	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	1,019In Stock	Cut Tape £7.29 £5.67 £5.27 £4.83 Reel £4.57 View £4.48 £4.37 £4.13 MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with Trickle Charger DS1340U-3+ Analog Devices / Maxim Integrated 1: £5.07 204In Stock	Mfr. Part No. DS1340U-3+ Mouser Part No 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	£5.07 £3.88 £3.59 £3.26	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: £57.14 20In Stock	Mfr. Part No. DS1556P-70+ Mouser Part No 700-DS1556P-70	Analog Devices / Maxim Integrated	Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi	Datasheet	20In Stock	£57.14 £47.19 £44.71 £44.15 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: £25.21 54In Stock	Mfr. Part No. DS17287-3+ Mouser Part No 700-DS17287-3	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	54In Stock	£25.21 £20.40 £19.21 £18.41 View £17.26 £17.25	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 RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR RX8804CE XA3 Epson Timing 1: £8.31 250In Stock	Mfr. Part No. RX8804CE XA3 Mouser Part No 732-RX8804CEXA3	Epson Timing	Real Time Clock RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR	Datasheet	250In Stock	Cut Tape £8.31 £6.48 £6.02 £5.52 Reel £5.26 View £5.07 £4.98 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8804CE	SMD/SMT	Reel, Cut Tape
Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS ISL12058IRTZ Renesas / Intersil 1: £2.12 953In Stock	Mfr. Part No. ISL12058IRTZ Mouser Part No 968-ISL12058IRTZ	Renesas / Intersil	Real Time Clock REAL TIME CLK W/ ALARM & TIMR FUNCTNS	Datasheet	953In Stock	£2.12 £1.58 £1.45 £1.29 View £1.21 £1.20 £1.14 £1.10 £1.08	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 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UC3 PURE SN Epson Timing 1: £4.50 766In Stock	Mfr. Part No. RX8900SA UC3 PURE SN Mouser Part No 732-RX8900SAUC3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	766In Stock	Cut Tape £4.50 £3.45 £3.19 £2.90 Reel £2.76 View £2.67 £2.65 £2.60 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
Real Time Clock 3.8ppm 1.6-5.5V RX8804CE:XB3 Epson Timing 1: £5.79 377In Stock	Mfr. Part No. RX8804CE:XB3 Mouser Part No 732-RX8804CE:XB3	Epson Timing	Real Time Clock 3.8ppm 1.6-5.5V Learn More about Epson Timing epson rx8804ce clock modules	Datasheet	377In Stock	Cut Tape £5.79 £4.46 £3.96 £3.70 Reel £3.41 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8804CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XPA-32.768KHZ-2-T1 ABRACON 1: £2.18 800In Stock New Product	Mfr. Part No. AB-RTC-XPA-32.768KHZ-2-T1 Mouser Part No 815-AB-XPA-32768K2T1 New Product	ABRACON	Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 Learn More about ABRACON ultra low power rtc modules	Datasheet	800In Stock	Cut Tape £2.18 £1.63 £1.48 £1.34 Reel £1.17 View £1.26 £1.23 £1.13 £1.11 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XPA-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XL-32.768KHZ-2-T1 ABRACON 1: £2.19 897In Stock New Product	Mfr. Part No. AB-RTC-XL-32.768KHZ-2-T1 Mouser Part No 815-RTCXL32768KHZ2T1 New Product	ABRACON	Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 Learn More about ABRACON ab rtc xl low power rtcs	Datasheet	897In Stock	Cut Tape £2.19 £1.63 £1.49 £1.34 Reel £1.20 View £1.27 £1.24 £1.15 £1.13 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-XL	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: £2.30 900In Stock New Product	Mfr. Part No. AB-RTC-XLA-32.768KHZ-2-T1 Mouser Part No 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 £2.30 £1.73 £1.58 £1.42 Reel £1.24 View £1.34 £1.30 £1.21 £1.20 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 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XP-32.768KHZ-2-T1 ABRACON 1: £2.10 800In Stock New Product	Mfr. Part No. AB-RTC-XP-32.768KHZ-2-T1 Mouser Part No 815-XP32762T1 New Product	ABRACON	Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 Learn More about ABRACON ultra low power rtc modules	Datasheet	800In Stock	Cut Tape £2.10 £1.57 £1.43 £1.28 Reel £1.13 View £1.21 £1.19 £1.09 £1.07 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XP-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA3 PURE SN Epson Timing 1: £7.46 30In Stock	Mfr. Part No. RX8900SA UA3 PURE SN Mouser Part No 732-RX8900SAUA3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	30In Stock	Cut Tape £7.46 £5.81 £5.39 £4.93 Reel £4.68 View £4.58 £4.48 Quote 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
Real Time Clock 5+/-23PPM RTC 250TR RX-8571LC:B3 PURE SN Epson Timing 1: £5.46 844In Stock	Mfr. Part No. RX-8571LC:B3 PURE SN Mouser Part No 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 £5.46 £4.21 £3.73 £3.48 Reel £3.20 View £3.16 £3.15 £3.04 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-8571LC	SMD/SMT	Reel, Cut Tape
Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS A06 Epson Timing 1: £4.39 1,988In Stock	Mfr. Part No. RX4901CE XS A06 Mouser Part No 732-RX4901CEXSA06	Epson Timing	Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1,988In Stock	Cut Tape £4.39 £3.35 £3.08 £2.80 Reel £2.42 View £2.65 £2.58 £2.50 £2.40 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 250TR RX6110SA:B3 PURE SN Epson Timing 1: £3.72 414In Stock	Mfr. Part No. RX6110SA:B3 PURE SN Mouser Part No 732-RX6110SAB3PURESN	Epson Timing	Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR	Datasheet	414In Stock	Cut Tape £3.72 £2.83 £2.60 £2.37 Reel £2.23 View £2.16 £2.12 £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 250	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 RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS D06 Epson Timing 1: £4.45 1,922In Stock	Mfr. Part No. RX4901CE XS D06 Mouser Part No 732-RX4901CEXSD06	Epson Timing	Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1,922In Stock	Cut Tape £4.45 £3.40 £3.13 £2.85 Reel £2.40 View £2.71 £2.65 £2.51 £2.39 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 RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK RX-8571LCB0 PURE SN Epson Timing 1: £2.72 522In Stock	Mfr. Part No. RX-8571LCB0 PURE SN Mouser Part No 732-RX8571LCB0PURESN	Epson Timing	Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	522In Stock	Cut Tape £2.72 £2.03 £1.86 £1.67 Reel £1.41 View £1.58 £1.41 £1.37 £1.35 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571LC	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS B06 Epson Timing 1: £4.39 1,800In Stock	Mfr. Part No. RX4901CE XS B06 Mouser Part No 732-RX4901CEXSB06	Epson Timing	Real Time Clock RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1,800In Stock	Cut Tape £4.39 £3.35 £3.08 £2.80 Reel £2.44 View £2.65 £2.58 £2.51 £2.43 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