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

M41T00SM6F	2463681 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2.7 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 33.800 10+ kr 25.440 25+ kr 23.320 50+ kr 22.140 100+ kr 20.960 More Pricing...	Min: 1 / Mult: 1	DD:MM:YYYY	ss:mm:hh	RTC	2.7V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
M41T00SM6F	2463681RL Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2.7 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr 20.960 250+ kr 19.900 500+ kr 19.310 1000+ kr 18.610	Min: 100 / Mult: 1	DD:MM:YYYY	ss:mm:hh	RTC	2.7V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
PCF85363ATL/AX	2890044 Data Sheet RoHS Date/Lot Code	NXP Real Time Clock/Calendar IC I2C 900 mV to 5.5 V HH:MM:SS: 12Hr / 24Hr YY-MM-DD-DW DFN2626-10	Each (Supplied on Cut Tape) Cut Tape	1+ kr 10.500 10+ kr 8.370 50+ kr 7.910 100+ kr 7.420 250+ kr 7.230 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-DW	HH:MM:SS: 12Hr / 24Hr	Calendar, Clock	900mV	5.5V	DFN2626	10Pins	I2C	-40°C	85°C	-	-
DS1392U-33+	2515397 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) SPI 2.97 V to 5.5 V µSOP-10	Each	1+ kr 51.810 10+ kr 39.680 50+ kr 34.860	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	Alarm RTC	2.97V	5.5V	µSOP	10Pins	SPI	-40°C	85°C	-	-
MCP79520T-I/MS	3592268 Data Sheet RoHS Date/Lot Code	MICROCHIP Real Time Clock RTCC SPI 1.8 V to 3.6 V MSOP-10 -40 °C to 85 °C	Each (Supplied on Full Reel) Full Reel	2500+ kr 11.440	Min: 2500 / Mult: 2500	YY-MM-DD-dd	HH:MM:SS:hh	RTCC	1.8V	3.6V	MSOP	10Pins	SPI	-40°C	85°C	-	-
PCF85363ATL/AX	2890044RL Data Sheet RoHS Date/Lot Code	NXP Real Time Clock/Calendar IC I2C 900 mV to 5.5 V HH:MM:SS: 12Hr / 24Hr YY-MM-DD-DW DFN2626-10	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr 7.420 250+ kr 7.230 500+ kr 7.080 1000+ kr 6.940 2500+ kr 6.790	Min: 100 / Mult: 1	YY-MM-DD-DW	HH:MM:SS: 12Hr / 24Hr	Calendar, Clock	900mV	5.5V	DFN2626	10Pins	I2C	-40°C	85°C	-	-
DP8573AV/NOPB	2492605 RoHS	TEXAS INSTRUMENTS RTC IC Date Time Format (BCD 12Hr / 24Hr) Parallel 4.5 V to 5.5 V LCC-28	Each	1+ kr 172.280 10+ kr 149.910 25+ kr 147.320 50+ kr 139.540 100+ kr 136.720	Min: 1 / Mult: 1	BCD	12Hr / 24Hr	RTC	4.5V	5.5V	LCC	28Pins	Parallel	-40°C	85°C	-	-
MAX31342EWA+	3023225 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.6V to 3.6V Supply WLP-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 13.070 10+ kr 10.660 30+ kr 10.080 100+ kr 9.490 250+ kr 8.900	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	1.6V	3.6V	WLP	8Pins	I2C	-40°C	85°C	-	-
DS1673S-3+	2798731 Data Sheet RoHS	ANALOG DEVICES RTC IC Format (Day/Date/Month/Year hh:mm:ss) 3 Wire Serial 2.7 V to 3.3 V supply WSOIC-20	Each	1+ kr 114.810	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	3.3V	WSOIC	20Pins	3 Wire, Serial	0°C	70°C	-	-
MAX31342EWA+	3023225RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.6V to 3.6V Supply WLP-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr 9.490 250+ kr 8.900	Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	1.6V	3.6V	WLP	8Pins	I2C	-40°C	85°C	-	-
MCP7940N-I/SN	2361122 Data Sheet RoHS Date/Lot Code	MICROCHIP Alarm RTC IC Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr I2C 64 Byte SRAM 1.8 V to 5.5 V SOIC-8	Each	1+ kr 8.670 25+ kr 8.050 100+ kr 7.750 250+ kr 7.600	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	-	AEC-Q100
MCP79410-I/SN	1823155 Data Sheet RoHS	MICROCHIP RTCC 12C 1K EE 64B SRAM 8SOIC	Each	1+ kr 11.950 25+ kr 11.210 100+ kr 11.180 250+ kr 11.140	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	MCP79410 MCP79411 MCP79412	AEC-Q100
Q418564C20005	1278031 Data Sheet RoHS Date/Lot Code	EPSON RTC IC YYYY:MM:DD:Hr:Min:Secs 12Hr / 24Hr 1.8 V to 5.5 V VSOJ 12Pins I2C	Each (Supplied on Cut Tape) Cut Tape	1+ kr 79.220 10+ kr 60.540 25+ kr 55.950 50+ kr 52.780 100+ kr 49.490 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:DD:Hr:Min:Secs	12Hr / 24Hr	RTC	1.8V	5.5V	VSOJ	12Pins	I2C	-40°C	85°C	-	-
M48T02-70PC1	9755764 Data Sheet RoHS	STMICROELECTRONICS RTC Timekeeper NVSRAM Parallel 4.75 V to 5.5 V DIP-24	Each	1+ kr 334.320 5+ kr 299.110 10+ kr 263.780 25+ kr 252.470 50+ kr 247.410	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	Timekeeper	4.75V	5.5V	DIP	24Pins	Parallel	0°C	70°C	-	-
MCP79511-I/MS	2361125 Data Sheet RoHS Date/Lot Code	MICROCHIP Alarm RTC IC Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr SPI 1.8 V to 3.6 V MSOP-10	Each	1+ kr 15.660 25+ kr 14.370 100+ kr 13.780 250+ kr 13.540	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	3.6V	MSOP	10Pins	SPI	-40°C	85°C	-	AEC-Q100
RV-4162-C7-TA-QC-020	2358522 Data Sheet RoHS	MICRO CRYSTAL RTC IC Date Time Format (Day/Date/Month/Year/Century 12Hr / 24Hr) I2C 1 V to 4.4 V LCC-8	Each	1+ kr 63.000 10+ kr 54.660 25+ kr 51.950 50+ kr 49.600 100+ kr 47.140 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	12Hr / 24Hr	RTC	1V	4.4V	LCC	8Pins	I2C	-40°C	85°C	-	-
MCP79410-I/MS	1823153 Data Sheet RoHS Date/Lot Code	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C Serial 1.8 V to 5.5 V MSOP-8	Each	1+ kr 11.010 25+ kr 10.290 100+ kr 10.200 250+ kr 10.100	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	1.8V	5.5V	MSOP	8Pins	I2C	-40°C	85°C	-	AEC-Q100
MCP7940M-I/P	2098894 Data Sheet RoHS Date/Lot Code	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V DIP-8	Each	1+ kr 8.350 25+ kr 7.660 100+ kr 7.570 250+ kr 7.460	Min: 1 / Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	1.8V	5.5V	DIP	8Pins	I2C	-40°C	85°C	-	AEC-Q100
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+ kr 133.700 10+ kr 104.960 46+ kr 93.920 138+ kr 88.290 276+ kr 85.640 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	-	-
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	-	-
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	-	-
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	-	-
DS1339BU+	2515378 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 1.71 V to 5.5 V µSOP-8	Each	1+ kr 71.830 10+ kr 55.230 50+ kr 48.520 100+ kr 46.400 250+ kr 44.160 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	1.71V	5.5V	µSOP	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	-	-
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	-	-