Real Time Clocks | Farnell Italy

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.

No Filter(s) Applied

0 Filter(s) Selected

			Price For		Quantity

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+ €3.320 250+ €3.160 500+ €3.080	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	-	-
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) Re-Reel Packaging Options	100+ €3.310 250+ €3.100 500+ €3.030	Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°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	1+ €8.090 10+ €6.270 25+ €5.820 100+ €5.320 250+ €5.080 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	-	-
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	1+ €6.600 10+ €5.080 25+ €4.700 100+ €4.290 250+ €4.090 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	-	-
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	1+ €4.140 10+ €3.200 25+ €2.950 50+ €2.710 100+ €2.390 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	-	-
DS12CR887-5+	2515428 Data Sheet RoHS Date/Lot Code	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+ €16.750 14+ €12.960 28+ €12.350 112+ €11.430 252+ €11.310 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	24Pins	Multiplexed	-40°C	85°C	-	-
DS3232S#T&R	2830851 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.3V to 5.5V Supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ €11.100 10+ €8.700 25+ €8.110 100+ €7.450 250+ €7.130 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	SOIC	20Pins	I2C	0°C	70°C	-	-
PCF8563T/F4,118	2841031RL 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) Re-Reel Packaging Options	100+ €0.922 250+ €0.867 500+ €0.839 1000+ €0.769 2500+ €0.728	Min: 100 / Mult: 1	DD:MM:YY	HH:MM:SS	Alarm RTC	1.8V	5.5V	SOIC	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+ €2.190 250+ €2.080 500+ €2.020 1000+ €1.960	Min: 100 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	2.5V	6V	SOIC	8Pins	I2C	-40°C	85°C	-	-
M41T93ZMY6F	3129790 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS) SPI 2.38V to 5.5V Supply SOIC-18	Each (Supplied on Cut Tape) Cut Tape	1+ €10.340 10+ €8.090 25+ €7.530 50+ €7.220 100+ €6.910 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.38V	5.5V	SOIC	18Pins	SPI	-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	1+ €1.280 10+ €0.931 50+ €0.844 100+ €0.748 250+ €0.702 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	-	-
DS1338C-3#	2798727 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 supply SOIC-16	Each	1+ €8.870 10+ €6.890 46+ €5.720 138+ €5.030 276+ €4.850 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	SOIC	16Pins	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+ €2.690 250+ €2.560 500+ €2.480 1000+ €2.410	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	-	-
DS1308U-3+	2798725 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 supply µSOP-8	Each	1+ €5.420 10+ €4.160 50+ €3.630 100+ €3.480 250+ €3.410 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
BQ32000D	3118313 RoHS Date/Lot Code	TEXAS INSTRUMENTS RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 3 V to 3.6 V supply SOIC-8	Each	1+ €2.250 10+ €1.660 25+ €1.510 50+ €1.490 100+ €1.470 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	3.6V	SOIC	8Pins	I2C	-40°C	85°C	-	-
DS1683S+T&R	2987317 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Elapsed Time Recorder I2C 2.5V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ €5.540 10+ €4.460 25+ €4.190 100+ €3.920 250+ €3.730 More Pricing...	Min: 1 / Mult: 1	-	-	Elapsed Time Recorder	2.5V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
ISL12026IBZ-T	2983742RL Data Sheet RoHS Date/Lot Code	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.7V to 5.5V Supply NSOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ €2.380 250+ €2.260 500+ €2.190 1000+ €2.130	Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	NSOIC	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	1+ €4.260 10+ €3.240 25+ €2.980 50+ €2.840 100+ €2.690 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	-	-
M48T35Y-70MH1F	2849895RL Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Clock/Calendar Date Time Format (YY-MM-DD-dd HH:MM:SS) Parallel 4.5V to 5.5V SOIC-28	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ €16.100 25+ €15.090 50+ €14.770 100+ €14.440	Min: 10 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	Calendar, Clock	4.5V	5.5V	SOIC	28Pins	Parallel	0°C	70°C	-	-
DS1744P-70+	2909725 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS) Parallel 5V PowerCap Module-34	Each	1+ €44.060 10+ €36.100 40+ €33.260 120+ €31.670 280+ €30.750	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	PowerCap Module	34Pins	Parallel	0°C	70°C	-	-
ISL12026IBZ-T	2983742 Data Sheet RoHS Date/Lot Code	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.7V to 5.5V Supply NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ €3.790 10+ €2.870 25+ €2.640 50+ €2.510 100+ €2.380 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
MCP7940NT-I/MNY	2851655 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+ €0.909 25+ €0.905 100+ €0.902 3300+ €0.898	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTCC	1.8V	5.5V	TDFN	8Pins	I2C	-40°C	85°C	-	-
PCA85063ATT/AJ	2890041 Data Sheet RoHS Date/Lot Code	NXP RTC Date Time Format (YY-MM-DD-dd HH:MM:SS) I2C 1.8V to 5.5V Supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ €1.440 10+ €1.060 50+ €0.966 100+ €0.851 250+ €0.800 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTC	1.8V	5.5V	TSSOP	8Pins	I2C	-40°C	105°C	-	AEC-Q100
DS1305E+T&R	3404542 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES REAL TIME CLOCK 2V TO 5.5V TSSOP-20	Each (Supplied on Cut Tape) Cut Tape	1+ €7.250 10+ €5.640 25+ €5.200 100+ €4.730 250+ €4.460 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2V	5.5V	TSSOP	20Pins	3 Wire, Serial, SPI	0°C	70°C	-	-
X1B0003010001	3253613 Data Sheet RoHS Date/Lot Code	EPSON RTC -40 TO 85DEG C	Each (Supplied on Cut Tape) Cut Tape	1+ €4.840 10+ €3.090 25+ €2.770 50+ €2.270 100+ €1.980 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	RTC	1.6V	5.5V	-	10Pins	I2C	-40°C	85°C	-	-