Real Time Clocks | Farnell Sweden

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

MAX31341CETB+T	3914523 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock IC YYYY-MM-DD-dd HH:MM:SS I2C 1.6 to 3.6 V TDFN-10	Each (Supplied on Cut Tape) Cut Tape	1+ kr23.810 10+ kr17.720 25+ kr16.200 100+ kr14.460 250+ kr13.700 More Pricing...	Min: 1 / Mult: 1	YYYY-MM-DD-dd	HH:MM:SS	RTCC	1.6V	3.6V	TDFN	10Pins	I2C	-40°C	85°C	MAX31341C Series	-
MAX31343ETAY+	3924943 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock IC YYYY-MM-DD-dd HH:MM:SS I2C 1.6 to 5.5 V TDFN-8	Each (Supplied in a Waffle Tray)	1+ kr58.390 10+ kr44.800 25+ kr40.020 100+ kr35.990 490+ kr33.820 More Pricing...	Min: 1 / Mult: 1	YYYY-MM-DD-dd	HH:MM:SS	RTCC	1.6V	5.5V	TDFN	8Pins	I2C	-40°C	85°C	MAX31343 Series	-
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+ kr89.170 25+ kr82.860 100+ kr76.120 250+ kr72.860 500+ kr71.010	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	WSOIC	16Pins	I2C	-40°C	85°C	-	-
DS1302SN+T&R	2515450 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Day/Date/Month/Year HH:MM:SS RTC Serial 2 V to 5.5 V Supply WSOIC-8	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr53.280 10+ kr40.670 25+ kr37.520 100+ kr33.380 250+ kr30.770 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2V	5.5V	WSOIC	8Pins	Serial	-40°C	85°C	-	-
PCA2129T/Q900/2,51	2427480RL Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C SPI 1.8 V to 4.2 V SOIC-16	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr38.390 250+ kr36.430 500+ kr35.340	Min: 100 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	4.2V	SOIC	16Pins	I2C, SPI	-40°C	85°C	-	-
DS1306E+T&R	2515454 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Day/Date/Month/Year HH:MM:SS Alarm RTC SPI 2 V to 5.5 V Supply TSSOP-20	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr72.310 10+ kr55.780 25+ kr51.650 100+ kr47.190 250+ kr45.020 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2V	5.5V	TSSOP	20Pins	SPI	0°C	70°C	-	-
DS1306E+	2515360 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) SPI 2 V to 5.5 V TSSOP-20	Each	1+ kr82.530 10+ kr63.940 74+ kr51.870 148+ kr49.800 296+ kr47.740 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2V	5.5V	TSSOP	20Pins	SPI	0°C	70°C	-	-
DS12C887A+	2515426 Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Multiplexed 4.5 V to 5.5 V EDIP-24	Each	1+ kr139.600 14+ kr107.680 28+ kr102.430 112+ kr94.780 252+ kr94.670 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	24Pins	Multiplexed	0°C	70°C	-	-
X1B0002320001	2445808RL Data Sheet RoHS Date/Lot Code	EPSON RTC IC Calendar 1.6 V to 5.5 V SOP 14Pins I2C SPI	Each (Supplied on Cut Tape) Cut Tape Packaging Options	100+ kr37.230 250+ kr32.480	Min: 100 / Mult: 1	-	-	Alarm RTC	1.6V	5.5V	SOP	14Pins	I2C, SPI	-40°C	85°C	-	-
DS1392U-33+	2515397 Data Sheet RoHS	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+ kr62.200 10+ kr47.770 50+ kr41.540	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	-	-
DS1388Z-33+T&R	2515475RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) I2C 2.97 V to 3.63 V NSOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ kr55.020 25+ kr50.890 100+ kr44.470 250+ kr41.210 500+ kr40.120	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	RTC	2.97V	3.63V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
M41T56M6F	2463679RL Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 4.5 V to 5.5 V SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr20.440 500+ kr18.590 1000+ kr18.050	Min: 100 / Mult: 5	DD:MM:YYYY	ss:mm:hh	RTC	4.5V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
MCP79412T-I/MNY	2361123RL 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 TDFN-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr11.090 3300+ kr10.200	Min: 100 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	5.5V	TDFN	8Pins	I2C	-40°C	85°C	-	AEC-Q100
DS2417P+T&R	2515491 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Binary 1 Wire MicroLAN interface 16.3kbits/s 2.5V to 5.5V Supply TSOC-6	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr40.990 10+ kr31.100 25+ kr28.600 100+ kr25.770 250+ kr24.470 More Pricing...	Min: 1 / Mult: 1	Binary	Binary	RTC	2.5V	5.5V	TSOC	6Pins	Serial	-40°C	85°C	-	-
DS1338Z-33+T&R	2515463RL 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 Packaging Options	10+ kr43.070 25+ kr39.680 100+ kr35.200 250+ kr32.580 500+ kr32.030	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
PCF2129AT/2,518	2400450RL Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C SPI 1.8V to 4.2V supply SOIC-20	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr35.230 250+ kr33.710 500+ kr32.730	Min: 100 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	4.2V	SOIC	20Pins	I2C, SPI	-40°C	85°C	-	-
PCA8565TS/1,118	2400446RL Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.8 V to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr12.070 250+ kr11.740 500+ kr11.090 1000+ kr10.870 2500+ kr10.200	Min: 100 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	5.5V	TSSOP	8Pins	I2C	-40°C	125°C	-	-
DS1305EN+T&R	2515453 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) SPI 2 V to 5.5 V TSSOP-20	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr88.110 10+ kr68.320 25+ kr62.750 100+ kr54.880 250+ kr51.050 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2V	5.5V	TSSOP	20Pins	SPI	-40°C	85°C	-	-
ISL1208IU8Z-T7A	2543322 Data Sheet RoHS Date/Lot Code	RENESAS RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.7 V to 5.5 V supply MSOP-8	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr54.910 10+ kr45.130 25+ kr43.390 50+ kr41.540 100+ kr37.080 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	MSOP	8Pins	I2C	-40°C	85°C	-	-
DS1388Z-33+T&R	2515475 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) I2C 2.97 V to 3.63 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr71.440 10+ kr55.020 25+ kr50.890 100+ kr44.470 250+ kr41.210 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	RTC	2.97V	3.63V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
PCF8593T/1,118	2775931RL Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 2.5 V to 6 V supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr23.630 250+ kr22.450 500+ kr21.800 1000+ kr21.150	Min: 100 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	2.5V	6V	SOIC	8Pins	I2C	-40°C	85°C	-	-
M41T82RM6F	2806832 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2.7V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr31.730 10+ kr23.740 25+ kr21.800 50+ kr20.830 100+ kr19.750 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS:hh	Alarm RTC	2.7V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
M41T82RM6F	2806832RL Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2.7V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ kr19.750 250+ kr18.560 500+ kr17.910 1000+ kr17.370	Min: 100 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS:hh	Alarm RTC	2.7V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
PCF2123BS/1,518	2775940 Data Sheet RoHS Date/Lot Code	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.1 V to 5.5 V supply HVQFN-16	Each (Supplied on Cut Tape) Cut Tape Packaging Options	1+ kr13.920 10+ kr10.120 50+ kr9.180 100+ kr8.130 250+ kr7.630 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.1V	5.5V	HVQFN	16Pins	I2C	-40°C	85°C	-	-
MCP79401-I/MS	2947744 Data Sheet RoHS Date/Lot Code	MICROCHIP RTCC Date Time Format (YY/MM/DD/dd HH:MM:SS) I2C 1.8V to 5.5V Supply MSOP-8	Each	1+ kr11.260 25+ kr10.540 100+ kr10.040 250+ kr10.000	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTCC	1.8V	5.5V	MSOP	8Pins	I2C	-40°C	85°C	-	-