RTC Real Time Clocks | Farnell Israel

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

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+ US$1.069 25+ US$1.000 100+ US$0.996 250+ US$0.990	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	1.8V	5.5V	MSOP	8Pins	I2C	-40°C	85°C	-	AEC-Q100
DS3234S#T&R	2798762 Data Sheet RoHS Date/Lot Code	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+ US$11.470 10+ US$9.005 25+ US$8.388 100+ US$7.705 250+ US$7.370 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2V	5.5V	SOIC	20Pins	SPI	0°C	70°C	-	-
DS1340U-33+T&R	2515465 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.97 V to 5.5 V µSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ US$4.958 10+ US$3.859 25+ US$3.564 100+ US$3.015 250+ US$2.881 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.97V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
ISL12022MIBZ-T	2113277 Data Sheet RoHS Date/Lot Code	RENESAS RTC Date Time Format (YY/MM/DD/dd HH:MM:SS) I2C 2.7V to 5.5V Supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ US$7.156 10+ US$5.521 25+ US$5.119 50+ US$4.864 100+ US$4.489 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTC	2.7V	5.5V	SOIC	20Pins	I2C	-40°C	85°C	-	-
DS1340U-33+T&R	2515465RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.97 V to 5.5 V µSOP-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ US$3.015 250+ US$2.881 500+ US$2.814	Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.97V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
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+ US$10.693 10+ US$8.362 25+ US$7.785 100+ US$7.156 250+ US$6.847 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+ US$8.362 25+ US$7.785 100+ US$7.156 250+ US$6.847 500+ US$6.660	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	4.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
DS1746W-120IND+	2515529 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Timekeeper NVSRAM Bytewide 2.97 V to 3.63 V EDIP-32	Each	1+ US$49.486	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.97V	3.63V	EDIP	32Pins	Bytewide	-40°C	85°C	-	-
DS3234S#T&R	2798762RL Data Sheet RoHS Date/Lot Code	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) Re-Reel Packaging Options	10+ US$9.005 25+ US$8.388 100+ US$7.705 250+ US$7.370 500+ US$7.182	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2V	5.5V	SOIC	20Pins	SPI	0°C	70°C	-	-
DS1308U-33+T	3596303 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock RTC I2C 3 V to 5.5 V µSOP-8 -40 °C to 85 °C	Each (Supplied on Cut Tape) Cut Tape	1+ US$5.105 10+ US$3.899 25+ US$3.591 100+ US$3.109 250+ US$2.948 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
DS1501YZ+	2515419 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year/Century hh:mm:ss) Bytewide 4.5 V to 5.5 V WSOIC-28	Each	1+ US$11.403 10+ US$9.058 25+ US$8.469	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	WSOIC	28Pins	Bytewide	0°C	70°C	-	-
DS12R885S-5+	2798721 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Bytewide 4.5 V to 5.5 V supply SOIC-24	Each	1+ US$7.102 10+ US$5.052	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	SOIC	24Pins	Bytewide	-40°C	85°C	-	-
DS1308U-33+T	3596303RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock RTC I2C 3 V to 5.5 V µSOP-8 -40 °C to 85 °C	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ US$3.109 250+ US$2.948 500+ US$2.868	Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
ISL12022MIBZ-T	2113277RL Data Sheet RoHS Date/Lot Code	RENESAS RTC Date Time Format (YY/MM/DD/dd HH:MM:SS) I2C 2.7V to 5.5V Supply SOIC-20	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ US$5.521 25+ US$5.119 50+ US$4.864 100+ US$4.489 250+ US$4.395 More Pricing...	Min: 10 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTC	2.7V	5.5V	SOIC	20Pins	I2C	-40°C	85°C	-	-
MAX31334EWC+T	4153554 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real-Time Clock I2C HH:MM:SS YY-MM-DD -40 °C to 85 °C WLCSP-12	Each (Supplied on Cut Tape) Cut Tape	1+ US$2.948 10+ US$2.224 25+ US$2.023 100+ US$1.675 250+ US$1.595 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD	HH:MM:SS	RTC	1.1V	5.5V	WLCSP	12Pins	I2C	-40°C	85°C	-	-
MAX31334EWC+T	4153554RL Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real-Time Clock I2C HH:MM:SS YY-MM-DD -40 °C to 85 °C WLCSP-12	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ US$1.675 250+ US$1.595 500+ US$1.528	Min: 100 / Mult: 1	YY-MM-DD	HH:MM:SS	RTC	1.1V	5.5V	WLCSP	12Pins	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+ US$23.102 10+ US$18.586 25+ US$17.460 50+ US$17.112 100+ US$16.763	Min: 1 / Mult: 1	BCD	12Hr / 24Hr	RTC	4.5V	5.5V	LCC	28Pins	Parallel	-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+ US$0.736 25+ US$0.675 100+ US$0.671 250+ US$0.667	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+ US$8.241 10+ US$6.311 25+ US$5.829 50+ US$5.494 100+ US$5.146 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	-	-
MCP79410-I/SN	1823155 Data Sheet RoHS	MICROCHIP RTCC 12C 1K EE 64B SRAM 8SOIC	Each	1+ US$1.662 25+ US$1.447 100+ US$1.203 250+ US$1.079	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
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+ US$6.258 10+ US$4.864 25+ US$4.476 50+ US$4.221 100+ US$4.033 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	12Hr / 24Hr	RTC	1V	4.4V	LCC	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+ US$7.075 10+ US$5.440 50+ US$4.770 100+ US$4.569 250+ US$4.355 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	-	-
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+ US$6.070 10+ US$4.636 25+ US$4.275 100+ US$3.846 250+ US$3.605 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	5.5V	NSOIC	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+ US$6.727 10+ US$4.757 25+ US$4.543 100+ US$4.315 300+ US$4.087 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+ US$9.862 10+ US$7.102 25+ US$6.807 100+ US$6.499 300+ US$6.164 More Pricing...	Min: 1 / Mult: 1	Binary	Binary	RTC	2.5V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-