Binary Real Time Clocks | e絡盟 Hong Kong

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

PCF85063TP/1Z	2427483 Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 900 mV to 5.5 V HWSON-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$3.840 10+ HK$2.990	Total:HK$3.84 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	HWSON	HWSON	I2C	8Pins	-40°C	85°C
PCF85063ATT/AJ	2775937 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	5+ HK$7.630 50+ HK$4.950 100+ HK$4.350 500+ HK$3.620 1000+ HK$3.420	Total:HK$38.15 Min: 5 / Mult: 5	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	TSSOP	TSSOP	I2C	8Pins	-40°C	85°C
PCF8563BS/4,118	2400453 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1 V to 5.5 V supply HVSON-10	Each (Supplied on Cut Tape) Cut Tape	1+ HK$5.820 10+ HK$4.840	Total:HK$5.82 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1V	5.5V	HVSON	HVSON	I2C	10Pins	-40°C	85°C
PCF85063TP/1Z	2427483RL Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 900 mV to 5.5 V HWSON-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ HK$2.990	Total:HK$299.00 Min: 100 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	HWSON	HWSON	I2C	8Pins	-40°C	85°C
PCF85063ATL/1,118	2427481 Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 900 mV to 5.5 V HXSON-10	Each (Supplied on Cut Tape) Cut Tape	1+ HK$6.000 10+ HK$4.280 100+ HK$3.360 500+ HK$3.000 1000+ HK$2.890 More Pricing...	Total:HK$6.00 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	HXSON	HXSON	I2C	10Pins	-40°C	85°C
PCF8563BS/4,118	2400453RL Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1 V to 5.5 V supply HVSON-10	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ HK$4.840	Total:HK$484.00 Min: 100 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1V	5.5V	HVSON	HVSON	I2C	10Pins	-40°C	85°C
PCF85063ATL/1,118	2427481RL Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 900 mV to 5.5 V HXSON-10	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$3.360 500+ HK$3.000 1000+ HK$2.890 2500+ HK$2.820 5000+ HK$2.750	Total:HK$336.00 Min: 100 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	HXSON	HXSON	I2C	10Pins	-40°C	85°C
PCF85063ATT/AJ	2775937RL Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$4.350 500+ HK$3.620 1000+ HK$3.420	Total:HK$435.00 Min: 100 / Mult: 5	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	TSSOP	TSSOP	I2C	8Pins	-40°C	85°C
PCF8523T/1,118	2400452 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.2 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$10.960 10+ HK$7.930 50+ HK$7.180 100+ HK$5.380	Total:HK$10.96 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.2V	5.5V	SOIC	SOIC	I2C	8Pins	-40°C	85°C
PCF8523T/1,118	2400452RL Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.2 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$5.380	Total:HK$538.00 Min: 100 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.2V	5.5V	SOIC	SOIC	I2C	8Pins	-40°C	85°C
PCA2129T/Q900/2,51	2427480 Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C SPI 1.8 V to 4.2 V SOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ HK$43.610 10+ HK$36.850 25+ HK$33.520 50+ HK$32.430 100+ HK$31.330 More Pricing...	Total:HK$43.61 Min: 1 / Mult: 1	I2C, SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	4.2V	SOIC	SOIC	I2C, SPI	16Pins	-40°C	85°C
PCF2123TS/1,118	2775930 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) SPI 1.1 V to 5.5 V supply TSSOP-14	Each (Supplied on Cut Tape) Cut Tape	1+ HK$11.900 10+ HK$8.690 50+ HK$7.870 100+ HK$6.980 250+ HK$6.530 More Pricing...	Total:HK$11.90 Min: 1 / Mult: 1	SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.1V	5.5V	TSSOP	TSSOP	SPI	14Pins	-40°C	85°C
PCA21125T/Q900/1,1	2400445 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) SPI 1.3 V to 5.5 V supply TSSOP-14	Each (Supplied on Cut Tape) Cut Tape	1+ HK$18.680 10+ HK$13.850 50+ HK$12.640 100+ HK$11.300 250+ HK$10.660 More Pricing...	Total:HK$18.68 Min: 1 / Mult: 1	SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.3V	5.5V	TSSOP	TSSOP	SPI	14Pins	-40°C	125°C
PCF2129AT/2,518	2400450 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C SPI 1.8V to 4.2V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ HK$44.460 10+ HK$34.460 25+ HK$31.810 50+ HK$30.440 100+ HK$29.070 More Pricing...	Total:HK$44.46 Min: 1 / Mult: 1	I2C, SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	4.2V	SOIC	SOIC	I2C, SPI	20Pins	-40°C	85°C
PCA8565TS/1,118	2400446 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.8 V to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$17.320 10+ HK$12.770 50+ HK$11.630 100+ HK$10.390 250+ HK$9.790 More Pricing...	Total:HK$17.32 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	5.5V	TSSOP	TSSOP	I2C	8Pins	-40°C	125°C
PCF8563TS/4,118	2400454 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$13.580 10+ HK$9.960 50+ HK$9.040 100+ HK$8.040 250+ HK$7.990 More Pricing...	Total:HK$13.58 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1V	5.5V	TSSOP	TSSOP	I2C	8Pins	-40°C	85°C
PCF85363ATT/AJ	2775939 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$11.220 10+ HK$8.130 50+ HK$7.360 100+ HK$6.520 250+ HK$6.120 More Pricing...	Total:HK$11.22 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	TSSOP	TSSOP	I2C	8Pins	-40°C	85°C
PCF85263ATT/AJ	2775936 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$9.400 10+ HK$6.910 50+ HK$6.290 100+ HK$5.580 250+ HK$5.240 More Pricing...	Total:HK$9.40 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	TSSOP	TSSOP	I2C	8Pins	-40°C	85°C
PCF85263ATL/AX	2775935 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply DFN2626-10	Each (Supplied on Cut Tape) Cut Tape	5+ HK$8.980 50+ HK$5.670 250+ HK$4.910 1000+ HK$4.540 2000+ HK$4.460	Total:HK$44.90 Min: 5 / Mult: 5	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	DFN2626	DFN2626	I2C	10Pins	-40°C	85°C
PCF2123BS/1,518	2775940 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.1 V to 5.5 V supply HVQFN-16	Each (Supplied on Cut Tape) Cut Tape	1+ HK$11.380 10+ HK$8.300 50+ HK$7.520 100+ HK$6.670 250+ HK$6.260 More Pricing...	Total:HK$11.38 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.1V	5.5V	HVQFN	HVQFN	I2C	16Pins	-40°C	85°C
PCF85263AT/AJ	2775933 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	5+ HK$10.440 50+ HK$6.870 100+ HK$6.070 500+ HK$5.450 1000+ HK$4.870	Total:HK$52.20 Min: 5 / Mult: 5	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	SOIC	SOIC	I2C	8Pins	-40°C	85°C
PCA2129T/Q900/2,51	2427480RL Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C SPI 1.8 V to 4.2 V SOIC-16	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$31.330 250+ HK$29.840 500+ HK$28.940	Total:HK$3,133.00 Min: 100 / Mult: 1	I2C, SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	4.2V	SOIC	SOIC	I2C, SPI	16Pins	-40°C	85°C
PCF2127T/2Y	2775934 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C SPI 1.8V to 4.2V supply SOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ HK$37.540 10+ HK$29.760 25+ HK$27.710 50+ HK$26.810 100+ HK$25.910 More Pricing...	Total:HK$37.54 Min: 1 / Mult: 1	I2C, SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	4.2V	SOIC	SOIC	I2C, SPI	16Pins	-40°C	85°C
PCF2127AT/2Y	2400449 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C SPI 1.8V to 4.2V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ HK$41.960 10+ HK$31.870 25+ HK$29.460 50+ HK$28.100 100+ HK$26.730 More Pricing...	Total:HK$41.96 Min: 1 / Mult: 1	I2C, SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	4.2V	SOIC	SOIC	I2C, SPI	20Pins	-40°C	85°C
PCF8523TS/1,118	2427485 Data Sheet RoHS	NXP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec Binary I2C 1.2 V to 5.5 V TSSOP-14	Each (Supplied on Cut Tape) Cut Tape	1+ HK$12.580 10+ HK$9.420 50+ HK$8.650 100+ HK$7.720 250+ HK$7.300 More Pricing...	Total:HK$12.58 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.2V	5.5V	TSSOP	TSSOP	I2C	14Pins	-40°C	85°C