RTC 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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RTC

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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	-	-
AB-RTCMC-32.768KHZ-AIGZ-S7-T	3820847 Data Sheet RoHS Date/Lot Code	ABRACON Real-Time Clock/Calendar IC I2C HH:MM:SS:hh YY-MM-DD-dd -40 °C to 85 °C	Each (Supplied on Full Reel) Full Reel Packaging Options	1000+ kr 29.090	Min: 1000 / Mult: 1000	YY-MM-DD-dd	HH:MM:SS:hh	RTC	1.3V	4.4V	CLCC	8Pins	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	-	-
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 8.100 25+ kr 7.450 100+ kr 7.360 250+ kr 7.250	Min: 1 / Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	1.8V	5.5V	DIP	8Pins	I2C	-40°C	85°C	-	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 95.030 10+ kr 63.350 25+ kr 55.230 50+ kr 50.640 100+ kr 45.810 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	-	-
Q418564710001	1278029 Data Sheet RoHS	EPSON RTC IC YYYY:MM:DD:Hr:Min:Secs 12Hr / 24Hr 1.8 V to 5.5 V VSOJ 20Pins I2C	Each (Supplied on Cut Tape) Cut Tape	1+ kr 114.700 10+ kr 76.540 25+ kr 66.650 50+ kr 61.120 100+ kr 55.350 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:DD:Hr:Min:Secs	12Hr / 24Hr	RTC	1.8V	5.5V	VSOJ	20Pins	I2C	-40°C	85°C	-	-
MCP79410-I/SN	1823155 Data Sheet RoHS Date/Lot Code	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
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
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 43.450 10+ kr 41.920 25+ kr 40.270 50+ kr 38.620 100+ kr 37.090 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	12Hr / 24Hr	RTC	1V	4.4V	LCC	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	-	-
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	-	-
DS1307+	2515369 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C Serial 4.5 V to 5.5 V DIP-8	Each	1+ kr 65.890 10+ kr 50.390 50+ kr 44.240 100+ kr 42.230 250+ kr 40.220 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	DIP	8Pins	I2C, Serial	0°C	70°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	-	-
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-33+T&R	2515463 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 3 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ kr 61.750 10+ kr 47.200 25+ kr 43.530 100+ kr 39.150 250+ kr 36.670 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	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	-	-
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	-	-
DS12887+	2518671 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year 12Hr / 24Hr) Multiplexed 4.5 V to 5.5 V DIP-24	Each	1+ kr 190.300 14+ kr 147.080 28+ kr 139.900 112+ kr 129.420 252+ kr 124.940 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:DD:Hr:Min:Secs	12Hr / 24Hr	RTC	4.5V	5.5V	EDIP	24Pins	Multiplexed	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	-	-
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	-	-