Real Time Clocks | Farnell Norway

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

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+ kr 135.440 10+ kr 98.890 25+ kr 94.870 100+ kr 90.850 300+ kr 86.350 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+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+ kr 126.240 10+ kr 98.800 25+ kr 91.970 100+ kr 84.550 250+ kr 80.780 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	-	-
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+ kr 144.790 10+ kr 113.910 46+ kr 102.080 138+ kr 87.420 276+ kr 84.340 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD	HH:MM:SS	RTC	2.3V	5.5V	WSOIC	16Pins	I2C	0°C	70°C	-	-
DS3234SN#	2519296 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Date/Month/Year hh:mm:ss) SPI 2 V to 5.5 V SOIC-20	Each	1+ kr 125.880 10+ kr 115.520 36+ kr 103.510 108+ kr 94.910 252+ kr 89.380 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD	HH:MM:SS	RTC	2V	5.5V	SOIC	20Pins	SPI	-40°C	85°C	-	-
DS1372U+	2515387 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Binary Counter IC Date Time Format (Binary) I2C 2.4 V to 5.5 V µSOP-8	Each	1+ kr 51.230 10+ kr 38.860 50+ kr 33.910 100+ kr 32.380 250+ kr 30.740 More Pricing...	Min: 1 / Mult: 1	Binary	Binary	Binary Counter	2.4V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
DS1338Z-33+	2518690 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year ss:mm:hh) I2C Serial 3 V to 5.5 V SOIC-8	Each	1+ kr 68.610 10+ kr 48.620 25+ kr 46.370 100+ kr 44.120 300+ kr 41.760 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	ss:mm:hh	RTC	3V	5.5V	SOIC	8Pins	I2C, Serial	-40°C	85°C	-	-
DS1682S+	2519150 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Binary) I2C 2.5 V to 5.5 V SOIC-8	Each	1+ kr 100.090 10+ kr 72.190 25+ kr 69.010 100+ kr 65.710 300+ kr 62.290 More Pricing...	Min: 1 / Mult: 1	Binary	Binary	RTC	2.5V	5.5V	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+ kr 152.140 10+ kr 126.470 46+ kr 109.990 138+ kr 102.100 276+ kr 97.500 More Pricing...	Min: 1 / Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	2.3V	5.5V	WSOIC	16Pins	I2C	-40°C	85°C	-	-
DS1338Z-3+	2515349 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.7 V to 5.5 V NSOIC-8	Each	1+ kr 67.590 10+ kr 47.810 25+ kr 45.690 100+ kr 43.450 300+ kr 41.100 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
DS1682S+T&R	2515483 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Elapsed Time Recorder IC I2C 2.5 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 89.260 10+ kr 69.010 25+ kr 63.940 100+ kr 58.410 250+ kr 55.700 More Pricing...	Min: 1 / Mult: 1	-	-	Elapsed Time Recorder	2.5V	5.5V	NSOIC	8Pins	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+ kr 123.730 10+ kr 113.680 36+ kr 106.700 108+ kr 97.940 252+ kr 93.090 More Pricing...	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	2.3V	5.5V	SOIC	20Pins	I2C	-40°C	85°C	-	-
PCF85063ATL/1,118	2427481 Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 900 mV to 5.5 V HXSON-10	Each (Supplied on Cut Tape) Cut Tape	1+ kr 8.770 10+ kr 6.290 100+ kr 4.980 500+ kr 4.440 1000+ kr 4.250 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	900mV	5.5V	HXSON	10Pins	I2C	-40°C	85°C	-	-
PCF8563TS/4,118	2400454 Data Sheet RoHS Date/Lot Code	NXP Real Time Clock/Calendar IC Alarm I2C HH:MM:SS Day; Date; Month; Year 1 V to 5.5 V TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 19.670 10+ kr 14.480 50+ kr 13.190 100+ kr 11.730 250+ kr 11.350 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1V	5.5V	TSSOP	8Pins	I2C	-40°C	85°C	-	-
PCF85063TP/1Z	2427483 Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 900 mV to 5.5 V HWSON-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 16.440 10+ kr 10.420 100+ kr 7.050 500+ kr 5.610 1000+ kr 5.090 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	900mV	5.5V	HWSON	8Pins	I2C	-40°C	85°C	-	-
MCP79410T-I/MNY	2851649 Data Sheet RoHS Date/Lot Code	MICROCHIP RTC Clock/Calendar Date Time Format (YY-MM-DD-dd HH:MM:SS) I2C 1.8V to 5.5V Supply TDFN-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 11.520 25+ kr 10.700 100+ kr 10.200 3300+ kr 9.690	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTCC	1.8V	5.5V	TDFN	8Pins	I2C	-40°C	85°C	-	-
DS1307ZN+T&R	2798724 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 4.5 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 59.030 10+ kr 45.190 25+ kr 41.050 100+ kr 37.500 250+ kr 35.130 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	SOIC	8Pins	I2C	-40°C	85°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+ kr 149.870 10+ kr 117.820 25+ kr 110.010 100+ kr 101.140 250+ kr 97.000 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	-	-
PCF8563T/5,518	2775929 Data Sheet RoHS Date/Lot Code	NXP Real Time Clock/Calendar IC I2C 1 V to 5.5 V HH:MM:SS YY-MM-DD-DW SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 9.170 10+ kr 6.570 50+ kr 5.920 100+ kr 5.200 250+ kr 4.880 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-DW	HH:MM:SS: 24Hr	Calendar, Clock	1V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
ISL12057IUZ-T	2983744 Data Sheet RoHS Date/Lot Code	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.4V to 3.6V Supply MSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 40.930 10+ kr 28.630 25+ kr 24.600 50+ kr 22.480 100+ kr 20.350 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.4V	3.6V	MSOP	8Pins	I2C	-40°C	85°C	-	-
DS3234SN#T&R	2798763 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) SPI 2 V to 5.5 V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ kr 143.080 10+ kr 112.460 25+ kr 104.810 100+ kr 96.440 250+ kr 92.440 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2V	5.5V	SOIC	20Pins	SPI	-40°C	85°C	-	-
PCF8563T/F4,118	2841031 Data Sheet RoHS Date/Lot Code	NXP RTC Date Time Format (DD:MM:YY HH:MM:SS Century Flag) 400 kbit/s I2C 1.8V to 5.5V SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 18.370 10+ kr 13.420 50+ kr 12.010 100+ kr 10.860 250+ kr 10.210 More Pricing...	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
PCF8563T/5,518	2775929RL Data Sheet RoHS Date/Lot Code	NXP Real Time Clock/Calendar IC I2C 1 V to 5.5 V HH:MM:SS YY-MM-DD-DW SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr 5.200 250+ kr 4.880 500+ kr 4.660 1000+ kr 4.500 2500+ kr 4.400	Min: 100 / Mult: 1	YY-MM-DD-DW	HH:MM:SS: 24Hr	Calendar, Clock	1V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
DS1307Z+	2909754 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 4.5V to 5.5V Supply NSOIC-8	Each	1+ kr 62.530 10+ kr 44.160 25+ kr 42.160 100+ kr 40.040 300+ kr 37.680 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	SOIC	8Pins	I2C	0°C	70°C	-	-
MCP79400-I/SN	2361117 Data Sheet RoHS Date/Lot Code	MICROCHIP Alarm RTC IC Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr I2C 1.8 V to 5.5 V SOIC-8	Each	1+ kr 10.400 25+ kr 9.640 100+ kr 9.090 250+ kr 8.910	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
MCP79412-I/SN	2103565 Data Sheet RoHS Date/Lot Code	MICROCHIP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec hh:mm:ss I2C 1.8 V to 5.5 V SOIC-8	Each	1+ kr 20.490 25+ kr 17.910 100+ kr 14.870 250+ kr 13.340	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	HH:MM:SS	Calendar, Clock	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	AEC-Q100