Day; Date; Month; Year; Century 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

M41T0M6F	45AC7403 Data Sheet RoHS	STMICROELECTRONICS RTC 8B I2C 5.5V SOIC-8	Each (Supplied on Cut Tape) Cut Tape Re-Reel Full Reel available	1+ $4.240 10+ $3.300 25+ $3.060 50+ $2.930 100+ $2.800 More Pricing...	Total:$4.24 Min: 1 / Mult: 1 Total:$33.00 Min: 10 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	2V	SOIC	5.5V	SOIC	8Pins	I2C	-40°C	85°C
AB1805-T3	40Y2064 Data Sheet RoHS Date/Lot Code	ABRACON REAL TIME CLOCK I2C QFN-16	Each (Supplied on Cut Tape) Cut Tape Re-Reel Full Reel available	1+ $2.160 10+ $1.590 25+ $1.460 50+ $1.380 100+ $1.310 More Pricing...	Total:$10.80 Min: 5 / Mult: 5 Total:$131.00 Min: 100 / Mult: 5	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	RTC	1.5V	QFN	3.6V	QFN	16Pins	I2C	-40°C	85°C
M41ST87WMX6TR	45AC7402 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS ALARM RTC 160B I2C 3.6V SOIC-28	Each (Supplied on Cut Tape) Cut Tape	1+ $12.950 10+ $11.350 25+ $10.930 50+ $10.540 100+ $10.170 More Pricing...	Total:$12.95 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	3V	SOIC	3.6V	SOIC	28Pins	I2C	-40°C	85°C
M41T93ZMY6F	07AH6824 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC -40 TO 85DEG C SOIC-18	Each (Supplied on Cut Tape) Cut Tape	1+ $10.190 10+ $8.550 25+ $8.120 50+ $7.730 100+ $7.360 More Pricing...	Total:$10.19 Min: 1 / Mult: 1	SPI	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	2.38V	SOIC	5.5V	SOIC	18Pins	SPI	-40°C	85°C
1339-31DVGI8	85AJ6767 Data Sheet RoHS Date/Lot Code	RENESAS REAL TIME CLOCK -40 TO 85DEG C ROHS COMPLIANT: YES	Each (Supplied on Cut Tape) Cut Tape	1+ $4.530 10+ $3.400 25+ $3.040 50+ $2.920 100+ $2.800 More Pricing...	Total:$4.53 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS: 12Hr / 24Hr	HH:MM:SS: 12Hr / 24Hr	Alarm RTC	3.3V	TSSOP	5.5V	TSSOP	8Pins	I2C	-40°C	85°C
DS1747W-120IND+	73Y1381 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 512KB EDIP-32	Each	1+ $74.520 5+ $68.130 10+ $61.740 30+ $59.860 50+ $58.000 More Pricing...	Total:$74.52 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	2.97V	EDIP	3.63V	EDIP	32Pins	Bytewide	-40°C	85°C
M41T82ZM6F	45AC7410 Data Sheet RoHS	STMICROELECTRONICS ALARM RTC 32B I2C 5.5V SOIC-8	Each	1+ $4.210 10+ $3.350 25+ $3.140 50+ $3.030 100+ $2.900 More Pricing...	Total:$4.21 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	2.38V	SOIC	5.5V	SOIC	8Pins	I2C	-40°C	85°C
M41T83RMY6F	45AC7411 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS ALARM RTC 32B I2C 5.5V SOIC-18	Each (Supplied on Cut Tape) Cut Tape	1+ $6.800 10+ $5.490 25+ $5.230 50+ $4.990 100+ $4.810 More Pricing...	Total:$6.80 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	2.7V	SOIC	5.5V	SOIC	18Pins	I2C	-40°C	85°C
M41T81SMY6F	45AC7407 Data Sheet RoHS	STMICROELECTRONICS ALARM RTC 20B I2C 5.5V SOIC-18	Each (Supplied on Cut Tape) Cut Tape	1+ $11.840 10+ $10.380 25+ $10.040 50+ $9.610 100+ $9.260 More Pricing...	Total:$11.84 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	2.7V	SOIC	5.5V	SOIC	18Pins	I2C	-40°C	85°C
DS1747-70+	73Y1379 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 512KB EDIP-32	Each	1+ $74.170 5+ $67.800 10+ $61.440 30+ $59.590 50+ $57.720 More Pricing...	Total:$74.17 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	4.5V	EDIP	5.5V	EDIP	32Pins	Bytewide	0°C	70°C
DS1744-70+	73Y1367 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 32KB EDIP-28	Each	1+ $54.630 5+ $51.180 10+ $47.750 36+ $44.310 60+ $41.610	Total:$54.63 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	4.5V	EDIP	5.5V	EDIP	28Pins	Bytewide	0°C	70°C
DS1744-70IND+	73Y1368 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 32KB EDIP-28	Each	1+ $54.370 5+ $51.010 10+ $47.650 25+ $44.290 50+ $41.640	Total:$54.37 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	4.5V	EDIP	5.5V	EDIP	28Pins	Bytewide	-40°C	85°C
M41T82SM6F	45AC7409 Data Sheet RoHS	STMICROELECTRONICS ALARM RTC 32B I2C 5.5V SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $3.920 10+ $3.110 25+ $2.900 50+ $2.790 100+ $2.680 More Pricing...	Total:$3.92 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	3V	SOIC	5.5V	SOIC	8Pins	I2C	-40°C	85°C
DS1746-70+	73Y1373 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 128KB EDIP-32	Each	1+ $58.870 5+ $53.500 10+ $48.150 33+ $46.660 55+ $45.180	Total:$58.87 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	4.5V	EDIP	5.5V	EDIP	32Pins	Bytewide	0°C	70°C
DS1744WP-120IND+	73Y1372 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/NV SRAM 32KB PWRCP-34	Each	1+ $57.680 5+ $52.550 10+ $47.430 25+ $45.610 80+ $43.790	Total:$57.68 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	2.97V	PWRCP	3.63V	PWRCP	34Pins	Bytewide	-40°C	85°C
DS1744W-120+	73Y1370 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/NV SRAM 32KB EDIP-28	Each	1+ $45.330 5+ $42.470 10+ $39.610 36+ $36.740 60+ $34.480	Total:$45.33 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	2.97V	EDIP	3.63V	EDIP	28Pins	Bytewide	0°C	70°C
AB0805-T3	40Y2063 Data Sheet RoHS Date/Lot Code	ABRACON REAL TIME CLOCK I2C QFN-16	Each (Supplied on Cut Tape) Cut Tape Re-Reel Full Reel available	1+ $2.200 10+ $1.630 25+ $1.500 50+ $1.420 100+ $1.340	Total:$11.00 Min: 5 / Mult: 5 Total:$134.00 Min: 100 / Mult: 5	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	RTC	1.5V	QFN	3.6V	QFN	16Pins	I2C	-40°C	85°C
DS1501YZ+	73Y1282 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 2MB HH:MM:SS WSOIC-28	Each	1+ $18.500 10+ $14.690 25+ $13.730 50+ $13.200 100+ $12.680 More Pricing...	Total:$18.50 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	4.5V	WSOIC	5.5V	WSOIC	28Pins	Bytewide	0°C	70°C
M41T93RQA6F	45AC7416 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS ALARM RTC 32B SPI 5.5V QFN-16	Each (Supplied on Cut Tape) Cut Tape	1+ $9.880 10+ $8.660 25+ $8.390 50+ $8.020 100+ $7.730 More Pricing...	Total:$9.88 Min: 1 / Mult: 1	SPI	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	2.7V	QFN	5.5V	QFN	16Pins	SPI	-40°C	85°C
DS1685SN-3+	68AC5070 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES ALARM RTC 0 TO 70DEG C	Each	1+ $13.080 10+ $10.260 25+ $9.850 60+ $9.450 120+ $9.080 More Pricing...	Total:$13.08 Min: 1 / Mult: 1	Parallel	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	Alarm RTC	2.7V	WSOIC	3.7V	WSOIC	24Pins	Parallel	0°C	70°C
M41T93ZQA6F	25AH9913 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS RTC -40 TO 85DEG C	Each (Supplied on Cut Tape) Cut Tape	1+ $7.600 10+ $6.360 25+ $6.100 50+ $5.740 100+ $5.450 More Pricing...	Total:$7.60 Min: 1 / Mult: 1	Serial, SPI	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	RTC	2.38V	QFN	5.5V	QFN	16Pins	Serial, SPI	-40°C	85°C
M41T81M6F	69AH1652 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS REAL-TIME CLOCK W/ALARM -40 TO 85DEG C ROHS COMPLIANT: YES	Each (Supplied on Cut Tape) Cut Tape	1+ $3.710 10+ $2.950 25+ $2.780 50+ $2.650 100+ $2.550 More Pricing...	Total:$3.71 Min: 1 / Mult: 1	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	2V	SOIC	5.5V	SOIC	8Pins	I2C	-40°C	85°C
M41T94MH6F	45AC7418 Data Sheet RoHS	STMICROELECTRONICS ALARM RTC 44B SPI 5.5V SOH-28	Each (Supplied on Cut Tape) Cut Tape	1+ $13.170 10+ $11.410 25+ $10.990 50+ $10.580 100+ $10.220 More Pricing...	Total:$13.17 Min: 1 / Mult: 1	SPI	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	Alarm RTC	2.7V	SOH	5.5V	SOH	28Pins	SPI	-40°C	85°C
AB0805-T3	73AJ0970 Data Sheet RoHS Date/Lot Code	ABRACON REAL TIME CLOCK I2C -40 TO 85DEG C ROHS COMPLIANT: YES	Each (Supplied on Full Reel) Full Reel	3000+ $1.120 6000+ $1.100 12000+ $1.100	Total:$3,360.00 Min: 3000 / Mult: 3000	I2C	Day; Date; Month; Year; Century	HH:MM:SS:hh	HH:MM:SS:hh	RTC	1.5V	QFN	3.6V	QFN	16Pins	I2C	-40°C	85°C
M41T01M6F	47AK6682 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS REAL TIME CLOCK -40 TO 85DEG C ROHS COMPLIANT: YES	Each (Supplied on Cut Tape) Cut Tape	1+ $3.660 10+ $2.750 25+ $2.530 50+ $2.400 100+ $2.270 More Pricing...	Total:$3.66 Min: 1 / Mult: 1	Serial	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	Calendar, Clock	2V	SOIC	5.5V	SOIC	8Pins	Serial	-40°C	85°C