Real Time Clocks | element14 China

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

DS12885S+T&R	2798720 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Bytewide 4.5 V to 5.5 V supply SOIC-24	Each (Supplied on Cut Tape) Cut Tape	1+ CNY83.380 (CNY94.2194) 10+ CNY65.300 (CNY73.789) 25+ CNY60.250 (CNY68.0825) 100+ CNY54.610 (CNY61.7093) 250+ CNY52.420 (CNY59.2346) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	SOIC	24Pins	Bytewide	0°C	70°C
DS12885S+T&R	2798720RL Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Bytewide 4.5 V to 5.5 V supply SOIC-24	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ CNY65.300 (CNY73.789) 25+ CNY60.250 (CNY68.0825) 100+ CNY54.610 (CNY61.7093) 250+ CNY52.420 (CNY59.2346) 500+ CNY51.460 (CNY58.1498) More Pricing...	Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	SOIC	24Pins	Bytewide	0°C	70°C
DS1685SN-5+	2798734 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Bytewide 4.5 V to 5.5 V supply TSSOP-24	Each	1+ CNY80.740 (CNY91.2362) 10+ CNY57.910 (CNY65.4383) 30+ CNY51.170 (CNY57.8221) 120+ CNY51.100 (CNY57.743) 270+ CNY50.340 (CNY56.8842) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	TSSOP	24Pins	Bytewide	-40°C	85°C
DS1744WP-120+	2798735 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Bytewide 3 V to 3.6 V supply PWRCP-34	Each	1+ CNY248.140 (CNY280.3982) 10+ CNY247.890 (CNY280.1157) 40+ CNY247.770 (CNY279.9801) 120+ CNY247.640 (CNY279.8332) 280+ CNY247.520 (CNY279.6976)	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	3.6V	PWRCP	34Pins	Bytewide	0°C	70°C
DS1501YN+	4668989 Data Sheet RoHS	ANALOG DEVICES Real Time Clock Bytewide HH:MM:SS YYYY-MM-DD-dd 5.5 V EDIP-28	Each	1+ CNY128.180 (CNY144.8434) 10+ CNY81.620 (CNY92.2306) 42+ CNY77.520 (CNY87.5976) 126+ CNY75.970 (CNY85.8461) 252+ CNY74.420 (CNY84.0946) More Pricing...	Min: 1 / Mult: 1	YYYY-MM-DD-dd	HH:MM:SS	RTC	4.5V	5.5V	EDIP	28Pins	Bytewide	-40°C	85°C
DS1554WP-120+	2798730 Data Sheet RoHS	ANALOG DEVICES RTC IC Format (Day/Date/Month/Year hh:mm:ss) Bytewide 2.97 V to 3.63 V supply PWRCP-34	Each	1+ CNY253.160 (CNY286.0708) 10+ CNY190.520 (CNY215.2876) 40+ CNY184.400 (CNY208.372) 120+ CNY181.010 (CNY204.5413) 280+ CNY179.140 (CNY202.4282)	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.97V	3.63V	PWRCP	34Pins	Bytewide	0°C	70°C
DS1743-100+	2515512 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 8KB EDIP-28	Each	1+ CNY132.190 (CNY149.3747) 10+ CNY111.620 (CNY126.1306) 25+ CNY107.650 (CNY121.6445) 100+ CNY104.020 (CNY117.5426) 250+ CNY102.400 (CNY115.712) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	EDIP	28Pins	Bytewide	0°C	70°C
DS1501WEN+	2515344 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 2MB HH:MM:SS TSOP-28	Each	1+ CNY103.000 (CNY116.390) 10+ CNY76.730 (CNY86.7049) 25+ CNY69.610 (CNY78.6593) 100+ CNY63.750 (CNY72.0375) 250+ CNY61.040 (CNY68.9752) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	3V	3.6V	TSOP	28Pins	Bytewide	-40°C	85°C
DS1742W-120+	2515506 Data Sheet RoHS	ANALOG DEVICES RTC W/ NV SRAM 2KB EDIP-24	Each	1+ CNY130.300 (CNY147.239) 10+ CNY110.020 (CNY124.3226) 25+ CNY106.110 (CNY119.9043) 100+ CNY102.530 (CNY115.8589) 250+ CNY100.930 (CNY114.0509) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.97V	3.63V	EDIP	24Pins	Bytewide	0°C	70°C
DS1743W-120+	2515513 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 8KB EDIP-28	Each	1+ CNY130.930 (CNY147.9509) 10+ CNY110.550 (CNY124.9215) 25+ CNY106.620 (CNY120.4806) 100+ CNY103.030 (CNY116.4239) 250+ CNY101.420 (CNY114.6046) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.97V	3.63V	EDIP	28Pins	Bytewide	0°C	70°C
DS1742-100+	2515504 Data Sheet RoHS	ANALOG DEVICES RTC W/ NV SRAM 2KB EDIP-24	Each	1+ CNY130.300 (CNY147.239) 10+ CNY110.020 (CNY124.3226) 25+ CNY106.110 (CNY119.9043) 100+ CNY102.530 (CNY115.8589) 250+ CNY100.930 (CNY114.0509) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	EDIP	24Pins	Bytewide	0°C	70°C
DS1553-100+	2515508 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 64KB HH:MM:SS EDIP-28	Each	1+ CNY170.200 (CNY192.326) 10+ CNY143.710 (CNY162.3923) 25+ CNY138.600 (CNY156.618) 100+ CNY133.930 (CNY151.3409) 250+ CNY131.840 (CNY148.9792) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	28Pins	Bytewide	0°C	70°C
DS1742-100IND+	2515505 Data Sheet RoHS	ANALOG DEVICES RTC W/ NV SRAM 2KB EDIP-24	Each	1+ CNY138.990 (CNY157.0587) 10+ CNY117.350 (CNY132.6055) 25+ CNY113.180 (CNY127.8934) 100+ CNY109.370 (CNY123.5881) 250+ CNY107.660 (CNY121.6558) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	EDIP	24Pins	Bytewide	-40°C	85°C
DS1553WP-120+	2515492 Data Sheet RoHS	ANALOG DEVICES RTC Timekeeper NVSRAM Bytewide 2.97 V to 3.63 V PWRCP-34	Each	1+ CNY151.820 (CNY171.5566) 10+ CNY128.190 (CNY144.8547) 25+ CNY123.630 (CNY139.7019) 100+ CNY119.460 (CNY134.9898) 250+ CNY117.600 (CNY132.888) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.97V	3.63V	PWRCP	34Pins	Bytewide	0°C	70°C
DS1500WEN+	2515347 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 2MB HH:MM:SS TSOP-32	Each	1+ CNY111.040 (CNY125.4752) 10+ CNY82.720 (CNY93.4736) 25+ CNY75.040 (CNY84.7952) 100+ CNY68.730 (CNY77.6649) 250+ CNY65.800 (CNY74.354) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	Alarm RTC	3V	3.6V	TSOP	32Pins	Bytewide	-40°C	85°C
DS1743W-120IND+	2515514 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 8KB EDIP-28	Each	1+ CNY157.490 (CNY177.9637) 10+ CNY132.980 (CNY150.2674) 25+ CNY128.250 (CNY144.9225) 100+ CNY123.930 (CNY140.0409) 250+ CNY121.990 (CNY137.8487) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.97V	3.63V	EDIP	28Pins	Bytewide	-40°C	85°C
DS1743P-100+	2515495 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 8KB PWRCP-34	Each	1+ CNY125.640 (CNY141.9732) 10+ CNY106.090 (CNY119.8817) 25+ CNY102.310 (CNY115.6103) 100+ CNY98.870 (CNY111.7231) 250+ CNY97.320 (CNY109.9716) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	PWRCP	34Pins	Bytewide	0°C	70°C
DS1500WE+	2515346 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 2MB HH:MM:SS TSOP-32	Each	1+ CNY96.490 (CNY109.0337) 10+ CNY71.880 (CNY81.2244) 25+ CNY65.210 (CNY73.6873) 100+ CNY59.720 (CNY67.4836) 250+ CNY57.180 (CNY64.6134) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	Alarm RTC	3V	3.6V	TSOP	32Pins	Bytewide	0°C	70°C
DS1501WE+	2515343 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 2MB HH:MM:SS TSOP-28	Each	1+ CNY85.870 (CNY97.0331) 10+ CNY63.970 (CNY72.2861) 25+ CNY58.030 (CNY65.5739) 100+ CNY53.150 (CNY60.0595) 250+ CNY50.890 (CNY57.5057) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	3V	3.6V	TSOP	28Pins	Bytewide	0°C	70°C
DS1743WP-120+	2515496 Data Sheet RoHS	ANALOG DEVICES RTC W/NV SRAM 8KB PWRCP-34	Each	1+ CNY124.380 (CNY140.5494) 10+ CNY105.020 (CNY118.6726) 25+ CNY101.290 (CNY114.4577) 100+ CNY97.880 (CNY110.6044) 250+ CNY96.350 (CNY108.8755) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.97V	3.63V	PWRCP	34Pins	Bytewide	0°C	70°C
DS1501YEN+	2515345 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 2MB HH:MM:SS TSOP-28	Each	1+ CNY89.650 (CNY101.3045) 10+ CNY66.780 (CNY75.4614) 25+ CNY60.580 (CNY68.4554) 100+ CNY55.490 (CNY62.7037) 250+ CNY53.120 (CNY60.0256) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	4.5V	5.5V	TSOP	28Pins	Bytewide	-40°C	85°C
DS1553-85+	2515509 Data Sheet RoHS	ANALOG DEVICES RTC W/ NVSRAM 64KB HH:MM:SS EDIP-28	Each	1+ CNY170.450 (CNY192.6085) 10+ CNY143.920 (CNY162.6296) 25+ CNY138.800 (CNY156.844) 100+ CNY134.120 (CNY151.5556) 250+ CNY132.030 (CNY149.1939) More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	28Pins	Bytewide	0°C	70°C

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