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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			Price For		Quantity

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+ US$1.144	Min: 2500 / Mult: 2500	YY-MM-DD-dd	HH:MM:SS:hh	RTCC	1.8V	3.6V	MSOP	10Pins	SPI	-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$0.813 25+ US$0.748 100+ US$0.738 250+ US$0.728	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$9.340 10+ US$6.231 25+ US$5.414 50+ US$4.958 100+ US$4.489 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	-	-
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+ US$1.528 25+ US$1.407 100+ US$1.340 250+ US$1.313	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
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+ US$11.336 10+ US$7.544 25+ US$6.579 50+ US$6.017 100+ US$5.454 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+ US$1.166 25+ US$1.099 100+ US$1.089 250+ 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
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
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+ US$0.842 25+ US$0.783 100+ US$0.753 250+ US$0.738	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
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+ US$1.119 25+ US$1.040 100+ US$0.990 3300+ US$0.950	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTCC	1.8V	5.5V	TDFN	8Pins	I2C	-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+ US$1.809 10+ US$1.329 50+ US$1.191 100+ US$1.072 250+ US$1.009 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	-	-
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+ US$1.045 25+ US$0.967 100+ US$0.913 250+ US$0.894	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	-	-
MCP79400-I/MS	2361121 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 MSOP-8	Each	1+ US$1.100 25+ US$1.012 100+ US$0.957 250+ US$0.938	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	5.5V	MSOP	8Pins	I2C	-40°C	85°C	-	-
MCP79510-I/MS	2361124 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+ US$1.447 25+ US$1.340 100+ US$1.268 250+ US$1.242	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
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+ US$1.970 25+ US$1.729 100+ US$1.434 250+ US$1.284	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
MCP79402-I/SN	2361119 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+ US$1.143 25+ US$1.056 100+ US$1.001 250+ US$0.981	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	-	-
MCP79401-I/SN	2361118 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+ US$1.143 25+ US$1.056 100+ US$1.001 250+ US$0.981	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	-	-
MCP79412T-I/MNY	2361123 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) Cut Tape	1+ US$1.218 25+ US$1.119 100+ US$1.060 3300+ US$1.049	Min: 1 / 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
DS1337+	2518743 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year ss:mm:hh) I2C Serial 1.8 V to 5.5 V DIP-8	Each	1+ US$5.146 10+ US$3.913 50+ US$3.417 100+ US$3.256 250+ US$3.095 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	ss:mm:hh	RTC	1.8V	5.5V	DIP	8Pins	I2C, Serial	-40°C	85°C	-	-
DS1337S+	2518709 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Format DD:DT:MM;YY ss:mm:hh Up to 2100 year 0.032768 MHz I2C 1.8V to 5.5V SO-8	Each	1+ US$5.025 10+ US$3.511 25+ US$3.350 100+ US$3.176 300+ US$2.988 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	ss:mm:hh	RTC	1.8V	5.5V	SOIC	8Pins	I2C, Serial	-40°C	85°C	-	-
MCP79411-I/SN	1971844 Data Sheet RoHS Date/Lot Code	MICROCHIP RTCC I2C 1K EE 64B SRAM 8SOIC	Each	1+ US$1.223 25+ US$1.167 100+ US$1.112 250+ US$1.089	Min: 1 / Mult: 1	YY-MM-DD	HH:MM:SS	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	AEC-Q100
MCP79520-I/MS	2345963 Data Sheet RoHS Date/Lot Code	MICROCHIP Real Time Clock AEC-Q100 MSOP-10 SPI 1.8 V to 3.6 V -40 °C to 85 °C	Each	1+ US$1.501 25+ US$1.407 100+ US$1.340 250+ US$1.313	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	1.8V	3.6V	MSOP	10Pins	SPI	-40°C	85°C	AEC-Q100	AEC-Q100
PCA2129T/Q900/2,51	2427480 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) Cut Tape	1+ US$6.365 10+ US$4.864 25+ US$4.462 50+ US$4.288 100+ US$4.114 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	4.2V	SOIC	16Pins	I2C, SPI	-40°C	85°C	-	-
PCF2129AT/2,518	2400450 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) Cut Tape	1+ US$5.856 10+ US$4.476 25+ US$4.127 50+ US$3.940 100+ US$3.739 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	4.2V	SOIC	20Pins	I2C, SPI	-40°C	85°C	-	-
PCF2127AT/2Y	2400449 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) Cut Tape	1+ US$5.655 10+ US$4.261 25+ US$3.980 50+ US$3.792 100+ US$3.591 More Pricing...	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	4.2V	SOIC	20Pins	I2C, SPI	-40°C	85°C	-	-
MCP7940M-I/SN	2098890 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 SOIC-8	Each	1+ US$0.752 25+ US$0.695 100+ US$0.686 250+ US$0.675	Min: 1 / Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	AEC-Q100