Real Time Clock – Mouser United Kingdom

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Real Time Clocks (RTC)

Analog Devices Inc. Real-time Clocks (RTCs) are offered in a wide range of low-power, highly accurate, small packages, and MEMs-based ICs. RTC ICs measure time, even when the power of the main device is off, so an auxiliary battery or supercapacitor are required. Power consumption is a key factor in most RTC designs, but accuracy and small package size are also important. The latest RTC ICs reduce package pin count by supporting a serial interface.

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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	Memory Size	Package/Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Packaging
Real Time Clock I C RTC with 56-Byte NV RAM DS1338Z-33+ Analog Devices / Maxim Integrated 1: £4.98 23,934In Stock	Mfr. Part No. DS1338Z-33+ Mouser Part No 700-DS1338Z-33	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with 56-Byte NV RAM	Datasheet	23,934In Stock	£4.98 £3.82 £3.53 £3.20 View £3.05 £2.96 £2.92 £2.89	Min.: 1 Mult.: 1 Max.: 19,147	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	56 B	SOIC-8	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1338Z	SMD/SMT	Tube
Real Time Clock I C RTC with Trickle Charger DS1340Z-18+ Analog Devices / Maxim Integrated 1: £6.26 5,864In Stock	Mfr. Part No. DS1340Z-18+ Mouser Part No 700-DS1340Z-18	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	5,864In Stock	£6.26 £4.83 £4.47 £3.61 View £3.46 £3.44 £3.35	Min.: 1 Mult.: 1 Max.: 4,691	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		SO-8	Backup Switching	1.71 V	1.89 V	- 40 C	+ 85 C	DS1340Z	SMD/SMT	Tube
Real Time Clock I C RTC/Supervisor with Trickle Charger DS1388Z-3+ Analog Devices / Maxim Integrated 1: £6.40 325In Stock	Mfr. Part No. DS1388Z-3+ Mouser Part No 700-DS1388Z-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC/Supervisor with Trickle Charger	Datasheet	325In Stock	£6.40 £4.96 £4.59 £4.20	Min.: 1 Mult.: 1 Max.: 260	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	512 B	SOIC-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1388Z	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1390U-3+ Analog Devices / Maxim Integrated 1: £4.98 429In Stock	Mfr. Part No. DS1390U-3+ Mouser Part No 700-DS1390U-3	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	429In Stock	£4.98 £3.82 £3.52 £3.20 £3.05	Min.: 1 Mult.: 1 Max.: 343	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		uSOP-10	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1390U	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1394U-33+ Analog Devices / Maxim Integrated 1: £4.75 3,125In Stock	Mfr. Part No. DS1394U-33+ Mouser Part No 700-DS1394U-33	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	3,125In Stock	£4.75 £3.65 £3.35 £3.06 View £2.92 £2.82 £2.79 £2.76	Min.: 1 Mult.: 1 Max.: 2,500	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	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302S+T&R Analog Devices / Maxim Integrated 1: £4.51 1,803In Stock	Mfr. Part No. DS1302S+T&R Mouser Part No 700-DS1302ST&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	1,803In Stock	Cut Tape £4.51 £3.46 £3.20 £2.92 View £2.77 £2.69 £2.65 £2.65 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,442	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	31 B	SOIC-8	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1302S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low-Current I C RTC with 56-Byte NV RAM DS1308U-33+T Analog Devices / Maxim Integrated 1: £4.72 2,433In Stock	Mfr. Part No. DS1308U-33+T Mouser Part No 700-DS1308U-33+T	Analog Devices / Maxim Integrated	Real Time Clock Low-Current I C RTC with 56-Byte NV RAM Learn More about Analog Devices / Maxim Integrated maxim ds1308	Datasheet	2,433In Stock	Cut Tape £4.72 £3.60 £3.33 £3.00 View £2.87 £2.77 £2.74 £2.74 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,946	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	56 B	uSOP-8	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1308U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with Trickle Charger DS1340U-3+T&R Analog Devices / Maxim Integrated 1: £4.85 1,516In Stock	Mfr. Part No. DS1340U-3+T&R Mouser Part No 700-DS1340U-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	1,516In Stock	Cut Tape £4.85 £3.72 £3.44 £3.13 View £2.98 £2.89 £2.85 £2.85 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,212	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	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with 56-Byte NV RAM DS1338Z-3+ Analog Devices / Maxim Integrated 1: £4.75 2,778In Stock	Mfr. Part No. DS1338Z-3+ Mouser Part No 700-DS1338Z-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with 56-Byte NV RAM	Datasheet	2,778In Stock	£4.75 £3.65 £3.37 £3.06 View £2.92 £2.82 £2.79	Min.: 1 Mult.: 1 Max.: 2,342	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	56 B	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	DS1338Z	SMD/SMT	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672U-33+T&R Analog Devices / Maxim Integrated 1: £4.43 664In Stock	Mfr. Part No. DS1672U-33+T&R Mouser Part No 700-DS1672U-33T&R	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	664In Stock	Cut Tape £4.43 £3.38 £3.11 £2.82 View £2.68 £2.60 £2.60 MouseReel Available	Min.: 1 Mult.: 1 Max.: 531	Serial 2-Wire, I2C	Binary	Binary			Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1672U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Trickle-Charge Timekeeping Chip DS1302S+ Analog Devices / Maxim Integrated 1: £4.16 542In Stock	Mfr. Part No. DS1302S+ Mouser Part No 700-DS1302S	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	542In Stock	£4.16 £3.46 £3.08 £2.91 £2.76	Min.: 1 Mult.: 1 Max.: 434	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	31 B	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 70 C	DS1302S	SMD/SMT	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1306N+ Analog Devices / Maxim Integrated 1: £9.92 235In Stock	Mfr. Part No. DS1306N+ Mouser Part No 700-DS1306N	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	235In Stock	£9.92 £7.76 £6.59 £6.29	Min.: 1 Mult.: 1 Max.: 188	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	96 B	DIP-16	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1306N	Through Hole	Tube
Real Time Clock I C Serial Real-Time Clock DS1337+ Analog Devices / Maxim Integrated 1: £4.18 2,613In Stock	Mfr. Part No. DS1337+ Mouser Part No 700-DS1337	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1337 rtc	Datasheet	2,613In Stock	£4.18 £3.20 £2.92 £2.60 View £2.49 £2.33 £2.31	Min.: 1 Mult.: 1 Max.: 2,090	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		DIP-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1337	Through Hole	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1305N+ Analog Devices / Maxim Integrated 1: £9.73 1,067In Stock	Mfr. Part No. DS1305N+ Mouser Part No 700-DS1305N	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	1,067In Stock	£9.73 £7.63 £6.95 £6.34 View £6.11 £5.88	Min.: 1 Mult.: 1 Max.: 853	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	96 B	DIP-16	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1305N	Through Hole	Tube
Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307N+ Analog Devices / Maxim Integrated 1: £4.25 389In Stock	Mfr. Part No. DS1307N+ Mouser Part No 700-DS1307N	Analog Devices / Maxim Integrated	Real Time Clock 64 x 8, Serial, I C Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1307	Datasheet	389In Stock	£4.25 £3.79 £3.22 £3.20	Min.: 1 Mult.: 1 Max.: 311	I2C	YY-MM-DD	HH:MM:SS:hh (12 hr, 24 hr)	56 B	PDIP-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1307N	Through Hole	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672S-3+T&R Analog Devices / Maxim Integrated 1: £4.37 1,980In Stock	Mfr. Part No. DS1672S-3+T&R Mouser Part No 700-DS1672S-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	1,980In Stock	Cut Tape £4.37 £3.33 £3.07 £2.78 View £2.65 £2.57 £2.54 £2.54 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,584	Serial 2-Wire, I2C	Binary	Binary		SOIC-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1672S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C Serial Real-Time Clock DS1339U-3+ Analog Devices / Maxim Integrated 1: £4.98 1,309In Stock	Mfr. Part No. DS1339U-3+ Mouser Part No 700-DS1339U-3	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	1,309In Stock	£4.98 £3.82 £3.51 £3.20 View £3.06 £2.96 £2.92	Min.: 1 Mult.: 1 Max.: 1,047	Serial 2-Wire, 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	DS1339U	SMD/SMT	Tube
Real Time Clock I C Serial Real-Time Clock DS1339U-3+T&R Analog Devices / Maxim Integrated 1: £4.98 2,433In Stock	Mfr. Part No. DS1339U-3+T&R Mouser Part No 700-DS1339U-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	2,433In Stock	Cut Tape £4.98 £3.82 £3.53 £3.21 View £3.06 £2.97 £2.93 £2.93 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,946	Serial 2-Wire, 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	DS1339U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low-Current I C RTCs for High-ESR Crystals DS1342U+ Analog Devices / Maxim Integrated 1: £3.68 1,063In Stock	Mfr. Part No. DS1342U+ Mouser Part No 700-DS1342U	Analog Devices / Maxim Integrated	Real Time Clock Low-Current I C RTCs for High-ESR Crystals Learn More about Analog Devices / Maxim Integrated maxim ds134x	Datasheet	1,063In Stock	£3.68 £2.78 £2.44 £2.30 View £2.17 £2.16	Min.: 1 Mult.: 1 Max.: 850	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		uSOP-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1342U	SMD/SMT	Tube
Real Time Clock Low-Current SPI/3-Wire RTCs DS1343D-33+ Analog Devices / Maxim Integrated 1: £6.19 152In Stock	Mfr. Part No. DS1343D-33+ Mouser Part No 700-DS1343D-33+	Analog Devices / Maxim Integrated	Real Time Clock Low-Current SPI/3-Wire RTCs Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	152In Stock	£6.19 £4.77 £4.42 £3.74	Min.: 1 Mult.: 1 Max.: 121	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	96 B	TDFN-EP-14	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1343D	SMD/SMT	Tube
Real Time Clock Low-Current SPI/3-Wire RTCs DS1343E-33+ Analog Devices / Maxim Integrated 1: £6.14 155In Stock	Mfr. Part No. DS1343E-33+ Mouser Part No 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	£6.14 £4.73 £4.37 £3.80	Min.: 1 Mult.: 1 Max.: 124	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	96 B	TSSOP-20	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1343E	SMD/SMT	Tube
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 £3.56 £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 I C RTC with Trickle Charger DS1340U-18+ Analog Devices / Maxim Integrated 1: £5.76 259In Stock	Mfr. Part No. DS1340U-18+ Mouser Part No 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	£5.76 £4.44 £3.98 £3.75	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 I C 32-Bit Binary Counter RTC DS1672U-33+ Analog Devices / Maxim Integrated 1: £4.43 207In Stock	Mfr. Part No. DS1672U-33+ Mouser Part No 700-DS1672U-33	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	207In Stock	£4.43 £3.38 £3.10 £2.82	Min.: 1 Mult.: 1 Max.: 166	Serial 2-Wire, I2C	Binary	Binary		uSOP-8	Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1672U	SMD/SMT	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302ZN+T&R Analog Devices / Maxim Integrated 1: £4.82 4,691In Stock	Mfr. Part No. DS1302ZN+T&R Mouser Part No 700-DS1302ZNT&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	4,691In Stock	Cut Tape £4.82 £3.69 £3.41 £3.11 £3.05 Reel £2.61 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,888 : 2,500	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	31 B	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302ZN	SMD/SMT	Reel, Cut Tape, MouseReel