HH:MM:SS:hh Real Time Clocks

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+ £0.854	Total:£2,135.00 Min: 2500 / Mult: 2500	SPI	HH:MM:SS:hh	YY-MM-DD-dd	RTCC	HH:MM:SS:hh	1.8V	3.6V	MSOP	MSOP	SPI	10Pins	-	-40°C	85°C
DS1388Z-3+	2515352 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS:hh) I2C 2.7V to 3.3V Supply NSOIC-8	Each	1+ £5.870 10+ £4.530	Total:£5.87 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	2.7V	3.3V	NSOIC	NSOIC	I2C	8Pins	-	-40°C	85°C
DS1248Y-70+	2515444 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) Bytewide 4.5 V to 5.5 V EDIP-32	Each	1+ £51.430 10+ £45.760 30+ £42.310 100+ £40.480	Total:£51.43 Min: 1 / Mult: 1	Bytewide	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	4.5V	5.5V	EDIP	EDIP	Bytewide	32Pins	-	0°C	70°C
DS1390U-33+	2515392 Data Sheet RoHS Date/Lot Code	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+ £6.130 10+ £4.530 50+ £3.830 100+ £3.660 250+ £3.490 More Pricing...	Total:£6.13 Min: 1 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year	Alarm RTC	HH:MM:SS:hh	2.97V	5.5V	µSOP	µSOP	SPI	10Pins	-	-40°C	85°C
AB0805-T3	2467702 Data Sheet RoHS Date/Lot Code	ABRACON RTC IC Day:Date:Month:Year:Century HH:MM:SS:hh 1.5 V to 3.6 V QFN 16Pins I2C	Each (Supplied on Cut Tape) Cut Tape	5+ £1.710 50+ £1.160 100+ £1.030 500+ £0.908 1500+ £0.890	Total:£8.55 Min: 5 / Mult: 5	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	RTC	HH:MM:SS:hh	1.5V	3.6V	QFN	QFN	I2C	16Pins	-	-40°C	85°C
M41T93RQA6F	2806840 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) SPI 2.7V to 5.5V Supply QFN-16	Each (Supplied on Cut Tape) Cut Tape	1+ £6.030 10+ £4.650 25+ £4.320 50+ £4.130 100+ £3.940 More Pricing...	Total:£6.03 Min: 1 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.7V	5.5V	QFN	QFN	SPI	16Pins	-	-40°C	85°C
M41T94MQ6F	2806843 Data Sheet RoHS	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) SPI 2.7V to 5.5V Supply SOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ £4.770 10+ £3.460 25+ £3.220 50+ £3.030 100+ £2.830 More Pricing...	Total:£4.77 Min: 1 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.7V	5.5V	SOIC	SOIC	SPI	16Pins	-	-40°C	85°C
M41T80M6F	2806830 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2V to 5.5V Supply SOIC-8	Each	1+ £3.820 10+ £2.910 25+ £2.680 50+ £2.550 100+ £2.420 More Pricing...	Total:£3.82 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C
M41T94MH6F	2806842 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) SPI 2.7V to 5.5V Supply SOH-28	Each (Supplied on Cut Tape) Cut Tape	1+ £8.010 10+ £6.250 25+ £5.800 50+ £5.560 100+ £5.320 More Pricing...	Total:£8.01 Min: 1 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.7V	5.5V	SOH	SOH	SPI	28Pins	-	-40°C	85°C
M41T81SMY6F	2806831 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-18	Each (Supplied on Cut Tape) Cut Tape	1+ £7.210 10+ £5.600 25+ £5.190 50+ £4.970 100+ £4.750 More Pricing...	Total:£7.21 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.7V	5.5V	SOIC	SOIC	I2C	18Pins	-	-40°C	85°C
DS1243Y-120+	2515439 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) Parallel 4.5 V to 5.5 V EDIP-28	Each	1+ £41.110 12+ £36.370 36+ £33.630 108+ £32.300 252+ £31.300	Total:£41.11 Min: 1 / Mult: 1	Parallel	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	4.5V	5.5V	EDIP	EDIP	Parallel	28Pins	-	0°C	70°C
DS1251Y-70+	2515443 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) Bytewide 4.5 V to 5.5 V EDIP-32	Each	1+ £51.620 10+ £45.930 30+ £42.460 100+ £40.620	Total:£51.62 Min: 1 / Mult: 1	Bytewide	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	4.5V	5.5V	EDIP	EDIP	Bytewide	32Pins	-	0°C	70°C
DS1394U-33+T&R	2515478 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Day/Date/Month/Year HH:MM:SS:hh Alarm RTC SPI 2.97 V to 5.5 V Supply µSOP-10	Each (Supplied on Cut Tape) Cut Tape	1+ £5.370 10+ £3.950 25+ £3.500 100+ £3.180 250+ £3.030 More Pricing...	Total:£5.37 Min: 1 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year	Alarm RTC	HH:MM:SS:hh	2.97V	5.5V	µSOP	µSOP	SPI	10Pins	-	-40°C	85°C
M41ST87WMX6TR	2806826 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 3V to 3.6V Supply SOIC-28	Each (Supplied on Cut Tape) Cut Tape	1+ £7.850 10+ £6.110 25+ £5.680 50+ £5.440 100+ £5.200 More Pricing...	Total:£7.85 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	3V	3.6V	SOIC	SOIC	I2C	28Pins	-	-40°C	85°C
M41ST85WMX6TR	2806825 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2.7V to 3.6V Supply SOIC-28	Each (Supplied on Cut Tape) Cut Tape	1+ £7.860 10+ £6.120 25+ £5.680 50+ £5.450 100+ £5.210 More Pricing...	Total:£7.86 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.7V	3.6V	SOIC	SOIC	I2C	28Pins	-	-40°C	85°C
M41T82ZM6F	2806834 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2.38V to 5.5V Supply SOIC-8	Each	1+ £2.700 10+ £2.030 25+ £1.870 50+ £1.780 100+ £1.680 More Pricing...	Total:£2.70 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.38V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C
M41T81M6F	3367096 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS REAL-TIME CLOCK W/ALARM -40 TO 85DEG C	Each (Supplied on Cut Tape) Cut Tape	1+ £2.410 10+ £1.810 25+ £1.650 50+ £1.570 100+ £1.480 More Pricing...	Total:£2.41 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C
DS1391U-33+	2515395 Data Sheet RoHS Date/Lot Code	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+ £6.080 10+ £4.490 50+ £3.790 100+ £3.630 250+ £3.450 More Pricing...	Total:£6.08 Min: 1 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year	Alarm RTC	HH:MM:SS:hh	2.97V	5.5V	µSOP	µSOP	SPI	10Pins	-	-40°C	85°C
AB1805-T3	2467703 Data Sheet RoHS Date/Lot Code	ABRACON RTC IC Day:Date:Month:Year:Century HH:MM:SS:hh 1.5 V to 3.6 V QFN 16Pins I2C	Each (Supplied on Cut Tape) Cut Tape	5+ £1.670 50+ £1.130 100+ £1.010 500+ £0.916 1500+ £0.882	Total:£8.35 Min: 5 / Mult: 5	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	RTC	HH:MM:SS:hh	1.5V	3.6V	QFN	QFN	I2C	16Pins	-	-40°C	85°C
DS1388Z-33+	2515353 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	1+ £7.450 10+ £5.540 25+ £4.940 100+ £4.500 300+ £4.260 More Pricing...	Total:£7.45 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	2.97V	3.63V	NSOIC	NSOIC	I2C	8Pins	-	-40°C	85°C
DS1244Y-70+	2515440 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) Parallel 4.5 V to 5.5 V EDIP-28	Each	1+ £46.610 12+ £41.220 36+ £38.110 108+ £36.600 252+ £35.460	Total:£46.61 Min: 1 / Mult: 1	Parallel	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	4.5V	5.5V	EDIP	EDIP	Parallel	28Pins	-	0°C	70°C
M41T82SM6F	2806833 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 3V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ £2.590 10+ £1.940 25+ £1.770 50+ £1.680 100+ £1.590 More Pricing...	Total:£2.59 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	3V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C
M41T83RMY6F	2806835 Data Sheet RoHS	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2.7V to 5.5V Supply SOIC-18	Each (Supplied on Cut Tape) Cut Tape	1+ £3.790 10+ £2.890 25+ £2.670 50+ £2.590 100+ £2.350 More Pricing...	Total:£3.79 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2.7V	5.5V	SOIC	SOIC	I2C	18Pins	-	-40°C	85°C
DS1391U-33+T&R	2515477RL Data Sheet RoHS	ANALOG DEVICES RTC Day/Date/Month/Year HH:MM:SS:hh Alarm RTC SPI 2.97 V to 5.5 V Supply µSOP-10	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ £3.180 250+ £3.030 500+ £2.930	Total:£318.00 Min: 100 / Mult: 1	SPI	HH:MM:SS:hh	Day; Date; Month; Year	Alarm RTC	HH:MM:SS:hh	2.97V	5.5V	µSOP	µSOP	SPI	10Pins	-	-40°C	85°C
AB1805-T3	3819895 Data Sheet RoHS Date/Lot Code	ABRACON Real Time Clock RTC I2C 1.5 V to 3.6 V HH:MM:SS:hh Day; Date; Month; Year; Century QFN	Each (Supplied on Full Reel) Full Reel Packaging Options	3000+ £0.874 9000+ £0.857	Total:£2,622.00 Min: 3000 / Mult: 3000	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	RTC	HH:MM:SS:hh	1.5V	3.6V	QFN	QFN	I2C	16Pins	-	-40°C	85°C