Bytewide Real Time Clocks | Newark Electronics

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

DS1251Y-70+	73Y1182 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 4096KB HH:MM:SS:HH EDIP	Each	1+ $52.480 5+ $50.470 10+ $48.470 30+ $47.090 50+ $45.720 More Pricing...	Total:$52.48 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS:hh	HH:MM:SS:hh	4.5V	5.5V	EDIP	32Pins	0°C	70°C
DS1554-70IND+	73Y1291 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 256KB HH:MM:SS EDIP-32	Each	1+ $49.620 5+ $45.020 10+ $40.430 33+ $39.150 55+ $37.880	Total:$49.62 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	4.5V	5.5V	EDIP	32Pins	-40°C	85°C
DS1747W-120IND+	73Y1381 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 512KB EDIP-32	Each	1+ $70.300 5+ $64.270 10+ $58.240 30+ $56.470 50+ $54.710 More Pricing...	Total:$70.30 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	2.97V	3.63V	EDIP	32Pins	-40°C	85°C
DS1747-70+	73Y1379 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 512KB EDIP-32	Each	1+ $69.970 5+ $63.960 10+ $57.960 30+ $56.210 50+ $54.450 More Pricing...	Total:$69.97 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	4.5V	5.5V	EDIP	32Pins	0°C	70°C
DS1248Y-70+	73Y1174 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 1024KB HH:MM:SS:HH EDIP	Each	1+ $52.280 5+ $50.280 10+ $48.300 30+ $46.930 50+ $45.560 More Pricing...	Total:$52.28 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS:hh	HH:MM:SS:hh	4.5V	5.5V	EDIP	32Pins	0°C	70°C
DS1744-70IND+	73Y1368 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/NV SRAM 32KB EDIP-28	Each	1+ $51.780 5+ $48.580 10+ $45.380 25+ $42.180 50+ $39.650	Total:$51.78 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	4.5V	5.5V	EDIP	28Pins	-40°C	85°C
DS1746-70+	73Y1373 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 128KB EDIP-32	Each	1+ $56.060 5+ $50.950 10+ $45.850 33+ $44.430 55+ $43.020	Total:$56.06 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	4.5V	5.5V	EDIP	32Pins	0°C	70°C
DS1744WP-120IND+	73Y1372 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/NV SRAM 32KB PWRCP-34	Each	1+ $54.410 5+ $49.570 10+ $44.740 25+ $43.020 80+ $41.310	Total:$54.41 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	2.97V	3.63V	PWRCP	34Pins	-40°C	85°C
DS1744W-120+	73Y1370 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/NV SRAM 32KB EDIP-28	Each	1+ $42.760 5+ $40.060 10+ $37.360 36+ $34.660 60+ $32.520	Total:$42.76 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	2.97V	3.63V	EDIP	28Pins	0°C	70°C
DS1556W-120+	73Y1296 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 1MB HH:MM:SS EDIP-32	Each	1+ $59.280 5+ $53.920 10+ $48.550 33+ $47.080 55+ $45.600	Total:$59.28 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	2.97V	3.63V	EDIP	32Pins	0°C	70°C
DS1554W-120IND+	73Y1292 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 256KB HH:MM:SS EDIP-32	Each	1+ $46.840 5+ $42.480 10+ $38.100 33+ $36.890 55+ $35.680 More Pricing...	Total:$46.84 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	2.97V	3.63V	EDIP	32Pins	-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+ $17.450 10+ $13.850 25+ $12.950 50+ $12.450 100+ $11.960 More Pricing...	Total:$17.45 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	4.5V	5.5V	WSOIC	28Pins	0°C	70°C
DS12885S+T&R	38AC0915 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC MULTIPLEXED 5.5V SOIC-24	Each (Supplied on Cut Tape) Cut Tape	1+ $11.730 10+ $9.190 25+ $8.560 50+ $8.210 100+ $7.860 More Pricing...	Total:$11.73 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	4.5V	5.5V	SOIC	24Pins	0°C	70°C
DS1744WP-120+	38AC0929 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC BYTEWIDE 3.6V PWRCP-34	Each	1+ $49.390 5+ $44.940 10+ $40.500 25+ $38.910 80+ $37.340	Total:$49.39 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	3V	3.6V	PWRCP	34Pins	0°C	70°C
DS1501WZ+	38AC0923 Data Sheet RoHS	ANALOG DEVICES RTC BYTEWIDE 3.6V SOIC-28	Each	1+ $11.660 10+ $10.870 25+ $10.590 50+ $9.580 100+ $9.070 More Pricing...	Total:$11.66 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	3V	3.6V	SOIC	28Pins	0°C	70°C
DS1501YN+	25AM8974 RoHS Date/Lot Code	ANALOG DEVICES RTC YY-MM-DD-DD EDIP-28 ROHS COMPLIANT: YES	Each	1+ $18.040 10+ $16.000 28+ $13.970 56+ $13.310 112+ $12.810 More Pricing...	Total:$18.04 Min: 1 / Mult: 1	Bytewide	YYYY-MM-DD-dd	HH:MM:SS	HH:MM:SS	4.5V	5.5V	EDIP	28Pins	-40°C	85°C
DS1685SN-5+	38AC0928 Data Sheet RoHS	ANALOG DEVICES RTC MULTIPLEXED 5.5V TSSOP-24	Each	1+ $12.340 10+ $9.680 25+ $9.290 60+ $8.910 120+ $8.560 More Pricing...	Total:$12.34 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	4.5V	5.5V	TSSOP	24Pins	-40°C	85°C
DS1554WP-120+	38AC0924 Data Sheet RoHS	ANALOG DEVICES RTC BYTEWIDE 3.63V PWRCP-34	Each	1+ $39.300 5+ $35.660 10+ $32.000 25+ $30.700 80+ $29.420 More Pricing...	Total:$39.30 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	2.97V	3.63V	PWRCP	34Pins	0°C	70°C
DS1747WP-120IND+	73Y1383 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 512KB PWRCP-34	Each	1+ $61.040	Total:$61.04 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	2.97V	3.63V	PWRCP	34Pins	-40°C	85°C
DS1248WP-120+	73Y1173 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 1024KB D-D-M-Y PWRCP-34	Each	Pricing is unavailable. Please contact customer services.		Bytewide	Day; Date; Month; Year	HH:MM:SS:hh	HH:MM:SS:hh	2.97V	3.63V	PWRCP	34Pins	0°C	70°C
DS1747W-120+	73Y1380 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 512KB EDIP-32	Each	1+ $66.370 5+ $60.640 10+ $54.900 30+ $53.220 50+ $51.540 More Pricing...	Total:$66.37 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	2.97V	3.63V	EDIP	32Pins	0°C	70°C
DS1744-70+	73Y1367 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 32KB EDIP-28	Each	1+ $52.020 5+ $48.740 10+ $45.470 36+ $42.200 60+ $39.620	Total:$52.02 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	4.5V	5.5V	EDIP	28Pins	0°C	70°C
DS1746WP-120+	73Y1378 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NV SRAM 128KB PWRCP-34	Each	1+ $52.660 5+ $47.970 10+ $43.260 25+ $41.590 80+ $39.920	Total:$52.66 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year; Century	HH:MM:SS	HH:MM:SS	2.97V	3.63V	PWRCP	34Pins	0°C	70°C
DS1251WP-120IND+	73Y1181 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 4096KB HH:MM:SS PWRCP	Each	Pricing is unavailable. Please contact customer services.		Bytewide	Day; Date; Month; Year	HH:MM:SS:hh	HH:MM:SS:hh	2.97V	3.63V	PWRCP	34Pins	-40°C	85°C
DS1554WP-120IND+	73Y1293 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ NVSRAM 256KB HH:MM:SS PWRCP-34	Each	1+ $38.000 5+ $34.530 10+ $31.060 25+ $29.830 80+ $28.600 More Pricing...	Total:$38.00 Min: 1 / Mult: 1	Bytewide	Day; Date; Month; Year	HH:MM:SS	HH:MM:SS	2.97V	3.63V	PWRCP	34Pins	-40°C	85°C