Day; Date; Month; Year 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

ISL12057IBZ-T	2983743 Data Sheet RoHS	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.4V to 3.6V Supply NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$16.880	Total:HK$16.88 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.4V	3.6V	NSOIC	8Pins	I2C	-40°C	85°C
ISL12057IBZ-T	2983743RL Data Sheet RoHS	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.4V to 3.6V Supply NSOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	1+ HK$16.880	Total:HK$1,688.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.4V	3.6V	NSOIC	8Pins	I2C	-40°C	85°C
MCP7940N-E/SN	2920808 Data Sheet RoHS	MICROCHIP RTCC Calendar Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.8V to 5.5V Supply SOIC-8	Each	1+ HK$7.680	Total:HK$7.68 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTCC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	125°C
ISL12020MIRZ-T7A	2543321 Data Sheet RoHS	RENESAS RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.7 V to 5.5 V supply DFN-20	Each (Supplied on Cut Tape) Cut Tape	1+ HK$93.020 10+ HK$72.850 25+ HK$67.800 50+ HK$66.010 100+ HK$64.210 More Pricing...	Total:HK$93.02 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	DFN	20Pins	I2C	-40°C	85°C
MCP79411-I/MS	2774924 Data Sheet RoHS	MICROCHIP Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V supply MSOP-8	Each	1+ HK$10.090 25+ HK$9.240 100+ HK$8.810	Total:HK$10.09 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.8V	5.5V	MSOP	8Pins	I2C	-40°C	85°C
MCP7940NT-I/SN	2857529 Data Sheet RoHS	MICROCHIP RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.8V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$7.220 25+ HK$6.710 100+ HK$6.680 3300+ HK$6.640	Total:HK$7.22 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
MCP7940MT-I/SN	2687514 Data Sheet RoHS	MICROCHIP Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V supply SOIC-8	Each (Supplied on Full Reel) Full Reel Packaging Options	3300+ HK$5.050 9900+ HK$4.950	Total:HK$16,665.00 Min: 3300 / Mult: 3300	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
ISL12057IUZ-T	2983744 Data Sheet RoHS	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.4V to 3.6V Supply MSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$22.900 10+ HK$17.110 25+ HK$15.600 50+ HK$14.810 100+ HK$14.010 More Pricing...	Total:HK$22.90 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.4V	3.6V	MSOP	8Pins	I2C	-40°C	85°C
PCF8563TS/5,118	2775932 Data Sheet RoHS	NXP Real Time Clock/Calendar IC Alarm I2C HH:MM:SS Day; Date; Month; Year 1 V to 5.5 V TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$10.330 10+ HK$7.480 50+ HK$6.780 100+ HK$6.000 250+ HK$5.630 More Pricing...	Total:HK$10.33 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1V	5.5V	TSSOP	8Pins	I2C	-40°C	85°C
MCP7940MT-I/SN	2901506 Data Sheet RoHS	MICROCHIP RTC Alarm RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.8V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$7.770 25+ HK$6.800 100+ HK$5.630	Total:HK$7.77 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
MCP79512-I/MS	2810108 Data Sheet RoHS	MICROCHIP Calendar Clock IC Day/Date/Month/Year hh:mm:ss:hh Serial SPI 1.8 V to 3.6 V supply MSOP-10	Each	1+ HK$11.890 25+ HK$10.960 100+ HK$10.440	Total:HK$11.89 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	Calendar, Clock	1.8V	3.6V	MSOP	10Pins	Serial SPI	-40°C	85°C
ISL1208IU8Z-T7A	2543322 Data Sheet RoHS	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+ HK$40.880 10+ HK$31.640 25+ HK$29.170 50+ HK$27.410 100+ HK$25.650 More Pricing...	Total:HK$40.88 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	MSOP	8Pins	I2C	-40°C	85°C
ISL1208IU8Z-TK	3869498 Data Sheet RoHS	RENESAS Real Time Clock/Calendar IC I2C 2.7 V to 5.5 V HH:MM:SS MSOP-8 -40 °C to 85 °C	Each (Supplied on Cut Tape) Cut Tape	1+ HK$29.420 10+ HK$22.150 25+ HK$20.360 50+ HK$19.340 100+ HK$18.310 More Pricing...	Total:HK$29.42 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	MSOP	8Pins	I2C	-40°C	85°C
ISL1208IU8Z-T7A	2543322RL Data Sheet RoHS	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) Re-Reel Packaging Options	100+ HK$25.650 250+ HK$22.920 500+ HK$22.240 1000+ HK$22.100	Total:HK$2,565.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	MSOP	8Pins	I2C	-40°C	85°C
ISL12020MIRZ-T7A	2543321RL Data Sheet RoHS	RENESAS RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.7 V to 5.5 V supply DFN-20	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ HK$72.850 25+ HK$67.800 50+ HK$66.010 100+ HK$64.210 250+ HK$62.930	Total:HK$728.50 Min: 10 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	DFN	20Pins	I2C	-40°C	85°C
PCF8563TS/5,118	2775932RL Data Sheet RoHS	NXP Real Time Clock/Calendar IC Alarm I2C HH:MM:SS Day; Date; Month; Year 1 V to 5.5 V TSSOP-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$6.000 250+ HK$5.630 500+ HK$5.620 1000+ HK$5.610 2500+ HK$5.600	Total:HK$600.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1V	5.5V	TSSOP	8Pins	I2C	-40°C	85°C
ISL12026IBZ-T	2983742RL Data Sheet RoHS	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+ HK$21.290 250+ HK$20.180 500+ HK$19.590 1000+ HK$19.080	Total:HK$2,129.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C
MCP7940NT-I/SN	2857529RL Data Sheet RoHS	MICROCHIP RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.8V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$6.680 3300+ HK$6.640	Total:HK$668.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
ISL1208IB8Z-TK	2983745 Data Sheet RoHS	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.7V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$24.120 10+ HK$18.050 25+ HK$16.510 50+ HK$15.660 100+ HK$14.800 More Pricing...	Total:HK$24.12 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
ISL12057IUZ-T	2983744RL Data Sheet RoHS	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.4V to 3.6V Supply MSOP-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$14.010 250+ HK$13.590 500+ HK$13.320 1000+ HK$13.050	Total:HK$1,401.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.4V	3.6V	MSOP	8Pins	I2C	-40°C	85°C
ISL12026IBZ-T	2983742 Data Sheet RoHS	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+ HK$33.870 10+ HK$25.650 25+ HK$23.600 50+ HK$22.450 100+ HK$21.290 More Pricing...	Total:HK$33.87 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C
MCP7940MT-I/SN	2901506RL Data Sheet RoHS	MICROCHIP RTC Alarm RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.8V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$5.630	Total:HK$563.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
ISL1208IB8Z-TK	2983745RL Data Sheet RoHS	RENESAS RTC Alarm Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 2.7V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$14.800 250+ HK$14.370 500+ HK$14.090 1000+ HK$13.800	Total:HK$1,480.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	SOIC	8Pins	I2C	-40°C	85°C
ISL1208IU8Z-TK	3869498RL Data Sheet RoHS	RENESAS Real Time Clock/Calendar IC I2C 2.7 V to 5.5 V HH:MM:SS MSOP-8 -40 °C to 85 °C	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$18.310 250+ HK$17.970 500+ HK$17.620 1000+ HK$17.260	Total:HK$1,831.00 Min: 100 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.7V	5.5V	MSOP	8Pins	I2C	-40°C	85°C
BQ32000D	3118313 RoHS	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+ HK$20.100 10+ HK$14.800 25+ HK$14.660 50+ HK$14.510 100+ HK$14.360 More Pricing...	Total:HK$20.10 Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	3.6V	SOIC	8Pins	I2C	-40°C	85°C