Real Time Clocks | Farnell® UK

Real-Time Clock products offer a diverse range of real-time clock (RTC) solutions for networking and embedded applications. The primary function of RTC is to keep time and calendar data.We offer Real Time Clock (RTC) functions including Alarm RTC, Binary Counter, Real Time Calendar Clock (RTCC), Elapsed Time Recorder and Real Time Event Recorder. Use of a hardware RTC allows microcontrollers like the Raspberry Pi to be used without internet access and still provide services that use time stamps. For example, the DS1307 is a commonly available I2C based RTC module – so using the DS1307’s I2C protocol, which is supported by the Raspberry Pi, real time clock support can easily and cost-effectively be added.Another popular RTC module, also with I2C support, is the DS3231. The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when mains power to the device is interrupted. Accuracy is ±2ppm from 0°C to +40°C, and ±3.5ppm from -40°C to +85°C.Apart from I2C, other interface types include 2 wire, 3 wire, 4 wire, Motorola Serial Peripheral Interface (SPI), Bytewide, Parallel, Multiplexed, and Phantom Clock.Operating temperatures range from -40°C minimum to +125°C maximum. Products are available to the AEC-Q100 Automotive Qualification Standard.

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			Price For		Quantity

DS3232MZ+TRL	2987323 Data Sheet RoHS	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS) I2C 2.3V to 4.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ £8.85 10+ £6.78 25+ £6.06 100+ £5.59 250+ £5.37 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	4.5V	SOIC	8Pins	I2C	-40°C	85°C	-
DS3232MZ+TRL	2987323RL Data Sheet RoHS	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS) I2C 2.3V to 4.5V Supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £6.78 25+ £6.06 100+ £5.59 250+ £5.37 500+ £5.26	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	4.5V	SOIC	8Pins	I2C	-40°C	85°C	-
DS3231SN#	2518948 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V WSOIC-16	Each	1+ £11.07 10+ £9.20 46+ £8.82 138+ £7.44 276+ £7.09 More Pricing...	Min: 1 / Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	2.3V	5.5V	WSOIC	16Pins	I2C	-40°C	85°C	-
DS3231MZ+	2515358 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V NSOIC-8	Each	1+ £9.93 10+ £7.26 25+ £6.96 100+ £6.66 300+ £6.33 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-
DS3231M+	2515405 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V WSOIC-16	Each	1+ £10.01 10+ £7.85 46+ £7.03 138+ £6.61 276+ £6.41 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	WSOIC	16Pins	I2C	-40°C	85°C	-
DS3231M+TRL	2515485 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock IC Alarm I2C HH:MM:SS Day; Date; Month; Year 2.3 V to 5.5 V WSOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ £9.00 10+ £7.05 25+ £6.56 100+ £6.03 250+ £5.76 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	WSOIC	16Pins	I2C	-40°C	85°C	-
DS3232SN#	2518949 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V SOIC-20	Each	1+ £9.07 10+ £8.34 36+ £7.83 108+ £7.18 252+ £6.83 More Pricing...	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	2.3V	5.5V	SOIC	20Pins	I2C	-40°C	85°C	-
DS3231S#	2519295 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V WSOIC-16	Each	1+ £10.56 10+ £8.26 46+ £7.31 138+ £6.38 276+ £6.16 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD	HH:MM:SS	RTC	2.3V	5.5V	WSOIC	16Pins	I2C	0°C	70°C	-
DS3231SN#T&R	2798760 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ £10.98 10+ £8.64 25+ £8.06 100+ £7.42 250+ £7.11 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	16Pins	I2C	-40°C	85°C	-
DS3231MZ+TRL	2515487 Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ £9.08 10+ £7.10 25+ £6.60 100+ £6.06 250+ £5.80 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-
DS3231S#T&R	2798759 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ £9.46 10+ £7.41 25+ £6.90 100+ £6.32 250+ £6.06 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	16Pins	I2C	0°C	70°C	-
DS3231SN#T&R	2798760RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-16	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £8.64 25+ £8.06 100+ £7.42 250+ £7.11 500+ £6.93	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	16Pins	I2C	-40°C	85°C	-
MAX31328NELB+	3677599 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock Alarm RTC I2C 12Hr / 24Hr 2.3 V to 5.5 V LGA-10 -40 °C to 85 °C	Each	1+ £4.15 10+ £3.17 25+ £2.84 100+ £2.55 490+ £2.33 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	12Hr / 24Hr	RTC	2.3V	5.5V	LGA	10Pins	I2C, Serial	-40°C	85°C	-
DS3232MZ+	2515490 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 4.5 V supply NSOIC-8	Each	1+ £9.22 10+ £6.73 25+ £6.27 100+ £5.80 300+ £5.70 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	4.5V	NSOIC	8Pins	I2C	-40°C	85°C	-
DS3232SN#T&R	2798761 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ £10.25 10+ £8.06 25+ £7.49 100+ £6.84 250+ £6.54 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	20Pins	I2C	-40°C	85°C	-
DS3231M+TRL	2515485RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock IC Alarm I2C HH:MM:SS Day; Date; Month; Year 2.3 V to 5.5 V WSOIC-16	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £7.05 25+ £6.56 100+ £6.03 250+ £5.76 500+ £5.62	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	WSOIC	16Pins	I2C	-40°C	85°C	-
DS3232S#T&R	2830851 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.3V to 5.5V Supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ £9.55 10+ £7.48 25+ £6.90 100+ £6.27 250+ £6.01 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	SOIC	20Pins	I2C	0°C	70°C	-
DS3231MZ+TRL	2515487RL Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £7.10 25+ £6.60 100+ £6.06 250+ £5.80 500+ £5.64	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-
DS3232SN#T&R	2798761RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-20	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £8.06 25+ £7.49 100+ £6.84 250+ £6.54 500+ £6.33	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	20Pins	I2C	-40°C	85°C	-
DS3231S#T&R	2798759RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-16	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £7.41 25+ £6.90 100+ £6.32 250+ £6.06 500+ £5.91	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	16Pins	I2C	0°C	70°C	-
DS3232S#T&R	2830851RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.3V to 5.5V Supply SOIC-20	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ £7.48 25+ £6.90 100+ £6.27 250+ £6.01 500+ £5.87	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	SOIC	20Pins	I2C	0°C	70°C	-
DS3232MZ/V+	4335747 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real-Time Clock IC YY-MM-DD-dd HH:MM:SS: 12Hr / 24Hr I2C 2.3 to 4.5V -40 °C to 85 °C	Each	1+ £9.35 10+ £6.39 25+ £5.96 100+ £5.52 300+ £5.43 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS: 12Hr / 24Hr	RTC	2.3V	4.5V	SOIC	8Pins	I2C	-40°C	85°C	-
DS3232S#	2518900 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year 12Hr / 24Hr) I2C 2.3 V to 5.5 V SOIC-20	Each	1+ £10.13 10+ £8.17 36+ £6.81 108+ £6.32 252+ £6.03 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	12Hr / 24Hr	RTC	2.3V	5.5V	SOIC	20Pins	I2C	0°C	70°C	-
MAX31328NELB+T	3914521 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock IC YY-MM-DD HH:MM:SS I2C 2.3 to 5.5 V LGA-10	Each (Supplied on Full Reel) Full Reel	2500+ £2.09	Min: 2500 / Mult: 2500	YYYY-MM-DD-dd	HH:MM:SS	RTCC	2.3V	5.5V	LGA	10Pins	I2C	-40°C	85°C	MAX31328 Series
DS3231MZ/V+T	4335759 Data Sheet RoHS	ANALOG DEVICES Real Time Clock 2.3V to 5.5V HH:MM:SS: 12Hr / 24Hr -40°C to 85°C SOIC-8	Each (Supplied on Full Reel) Full Reel	2500+ £6.73	Min: 2500 / Mult: 2500	DD:MM:YYYY	HH:MM:SS: 12Hr / 24Hr	RTC	2.3V	5.5V	SOIC	8Pins	I2C, Serial	-45°C	85°C	-