DD:MM:YYYY 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

M41T00SM6F	2463681 Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2.7 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	5+ HK$19.210 50+ HK$17.790 100+ HK$16.360 500+ HK$14.280 1000+ HK$13.830	Total:HK$96.05 Min: 5 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2.7V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
M41T00SM6F	2463681RL Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2.7 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$16.360 500+ HK$14.280 1000+ HK$13.830	Total:HK$1,636.00 Min: 100 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2.7V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
MCP7940M-I/P	2098894 Data Sheet RoHS	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V DIP-8	Each	1+ HK$6.340 25+ HK$5.820 100+ HK$5.670	Total:HK$6.34 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.8V	5.5V	DIP	DIP	I2C	8Pins	AEC-Q100	-40°C	85°C	AEC-Q100
MCP7940M-I/SN	2098890 Data Sheet RoHS	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V SOIC-8	Each	1+ HK$5.740 25+ HK$5.530 100+ HK$5.320	Total:HK$5.74 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.8V	5.5V	SOIC	SOIC	I2C	8Pins	AEC-Q100	-40°C	85°C	AEC-Q100
MCP7940M-I/MS	2098889 Data Sheet RoHS	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V MSOP-8	Each	1+ HK$6.080 25+ HK$5.650 100+ HK$5.310	Total:HK$6.08 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.8V	5.5V	MSOP	MSOP	I2C	8Pins	AEC-Q100	-40°C	85°C	AEC-Q100
M41T11M6F	2463678 Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2 V to 5.5 V SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ HK$27.790 10+ HK$20.950 25+ HK$19.160 50+ HK$18.940 100+ HK$18.710 More Pricing...	Total:HK$27.79 Min: 1 / Mult: 1	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
M41T56M6F	2463679 Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 4.5 V to 5.5 V SOIC-8	Each (Supplied on Cut Tape) Cut Tape	5+ HK$21.220 50+ HK$19.170 100+ HK$17.110 500+ HK$15.940 1000+ HK$15.630	Total:HK$106.10 Min: 5 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	4.5V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
M41T11M6F	2463678RL Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2 V to 5.5 V SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$18.710 250+ HK$18.480 500+ HK$18.250 1000+ HK$18.020	Total:HK$1,871.00 Min: 100 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
MCP7940M-I/ST	2098892 Data Sheet RoHS	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V TSSOP-8	Each	1+ HK$6.080 25+ HK$5.650 100+ HK$5.310	Total:HK$6.08 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.8V	5.5V	TSSOP	TSSOP	I2C	8Pins	AEC-Q100	-40°C	85°C	AEC-Q100
M41T56M6F	2463679RL Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 4.5 V to 5.5 V SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$17.110 500+ HK$15.940 1000+ HK$15.630	Total:HK$1,711.00 Min: 100 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	4.5V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
RV-3049-C2 OPTION B	1641060 Data Sheet RoHS	MICRO CRYSTAL RTC IC Date Time Format (Date/Month/Year hh:mm:ss) 4 Wire SPI 1.3 V to 5.5 V SON-10	Each (Supplied on Cut Tape) Cut Tape	1+ HK$63.010 10+ HK$50.410 25+ HK$47.160 50+ HK$45.560 100+ HK$43.770 More Pricing...	Total:HK$63.01 Min: 1 / Mult: 1	4 Wire, SPI	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.3V	5.5V	SON	SON	4 Wire, SPI	10Pins	-	-40°C	85°C	-
M41T00M6F	2253250 Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2 V to 5.5 V SOIC-8	Each (Supplied on Full Reel) Full Reel Packaging Options	2500+ HK$14.800 7500+ HK$14.510	Total:HK$37,000.00 Min: 2500 / Mult: 2500	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
M41T00M6F	2463680RL Data Sheet RoHS	STMICROELECTRONICS RTC IC Date Time Format (Date/Month/Year ss:mm:hh) I2C 2 V to 5.5 V SOIC-8	Each (Supplied on Cut Tape) Re-Reel Packaging Options	100+ HK$16.090 500+ HK$15.610 1000+ HK$15.100	Total:HK$1,609.00 Min: 100 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
M41T00M6F	2463680 Data Sheet RoHS	STMICROELECTRONICS REAL TIME CLOCK/CALENDAR BINARY SOIC-8	Each (Supplied on Cut Tape) Cut Tape	5+ HK$18.870 50+ HK$17.480 100+ HK$16.090 500+ HK$15.610 1000+ HK$15.100	Total:HK$94.35 Min: 5 / Mult: 5	I2C	ss:mm:hh	DD:MM:YYYY	RTC	ss:mm:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
RV-3049-C2 OPTION B	1641060RL Data Sheet RoHS	MICRO CRYSTAL RTC IC Date Time Format (Date/Month/Year hh:mm:ss) 4 Wire SPI 1.3 V to 5.5 V SON-10	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ HK$50.410 25+ HK$47.160 50+ HK$45.560 100+ HK$43.770 250+ HK$42.760 More Pricing...	Total:HK$504.10 Min: 10 / Mult: 1	4 Wire, SPI	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.3V	5.5V	SON	SON	4 Wire, SPI	10Pins	-	-40°C	85°C	-
RV-8564-C2	1539389 Data Sheet RoHS	MICRO CRYSTAL RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.2 V to 5.5 V SON-10	Each (Supplied on Cut Tape) Cut Tape	1+ HK$50.110 10+ HK$40.090 25+ HK$37.510 50+ HK$36.230 100+ HK$34.810 More Pricing...	Total:HK$50.11 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.2V	5.5V	SON	SON	I2C	10Pins	-	-40°C	85°C	-
M48T12-70PC1	1224444 Data Sheet RoHS	STMICROELECTRONICS Timekeeper IC Date Time Format (Date/Month/Year hh:mm:ss) 4.5 V to 5.5 V DIP-24	Each	1+ HK$346.710 5+ HK$303.030 10+ HK$287.140 25+ HK$279.990 50+ HK$254.750	Total:HK$346.71 Min: 1 / Mult: 1	-	HH:MM:SS	DD:MM:YYYY	Timekeeper	HH:MM:SS	4.5V	5.5V	DIP	DIP	-	24Pins	-	0°C	70°C	-
HT1381-8SOPLF	1420865 Data Sheet RoHS	HOLTEK Timekeeper IC Date Time Format (Date/Month/Year hh:mm:ss) Serial 2 V to 5.5 V SOP-8	Each	1+ HK$11.360 10+ HK$9.470 50+ HK$8.720 100+ HK$8.620 250+ HK$8.370 More Pricing...	Total:HK$11.36 Min: 1 / Mult: 1	-	HH:MM:SS	DD:MM:YYYY	Timekeeper	HH:MM:SS	2V	5.5V	SOP	SOP	-	8Pins	-	0°C	70°C	-
M41T00M6E	9882634 Data Sheet RoHS	STMICROELECTRONICS NVRAM/RTCC 164BITX8 41T00 SOIC8	Each	1+ HK$17.110 10+ HK$13.260 50+ HK$12.270 100+ HK$11.690 250+ HK$11.160 More Pricing...	Total:HK$17.11 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
ISL12025IBZ	1360965 Data Sheet RoHS	RENESAS RTC/CALENDAR EEPROM SMD SOIC8	Each	1+ HK$36.390 10+ HK$28.560 25+ HK$26.590 50+ HK$25.370 100+ HK$24.240 More Pricing...	Total:HK$36.39 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	2.7V	5.5V	SOIC	SOIC	I2C	8Pins	-	-40°C	85°C	-
M48T08Y-10MH1E	1224443 Data Sheet RoHS	STMICROELECTRONICS SRAM TIMEKEEPER 64K SMD SOH-28	Each	1+ HK$110.200 10+ HK$85.400 25+ HK$79.000 50+ HK$75.280 100+ HK$71.880 More Pricing...	Total:HK$110.20 Min: 1 / Mult: 1	-	HH:MM:SS	DD:MM:YYYY	Timekeeper	HH:MM:SS	4.75V	5.5V	-	-	-	28Pins	-	0°C	70°C	-
M41T81SM6E	1224442 Data Sheet RoHS	STMICROELECTRONICS IC SERIAL RTC I2C SMD SO-8-8	Each	1+ HK$14.520 10+ HK$11.250 50+ HK$10.410 100+ HK$9.920 250+ HK$9.470 More Pricing...	Total:HK$14.52 Min: 1 / Mult: 1	I2C, Serial	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	2.7V	5.5V	SOIC	SOIC	I2C, Serial	8Pins	-	-40°C	85°C	-
M41T82RM6E	1292455 Data Sheet RoHS	STMICROELECTRONICS RTC ANALOG CALIBRATION RST I2C	Each	1+ HK$23.170 10+ HK$15.840 100+ HK$13.170 250+ HK$11.390 500+ HK$10.200	Total:HK$23.17 Min: 1 / Mult: 1	I2C, Serial	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	2.7V	5.5V	SOIC	SOIC	I2C, Serial	8Pins	-	-40°C	85°C	-
M41T11MH6E	9755810 Data Sheet RoHS	STMICROELECTRONICS NVRAM/RTCC I512BITX8 SMD 41T11	Each	1+ HK$31.650 10+ HK$24.530 25+ HK$22.690 50+ HK$21.620 100+ HK$20.650 More Pricing...	Total:HK$31.65 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	2V	5.5V	SOIC	SOIC	I2C	28Pins	-	-40°C	85°C	-
ISL1220IUZ	1361048 Data Sheet RoHS	RENESAS IC SM RTC LOW POWER 8 BYTES SRAM	Each	1+ HK$21.720 10+ HK$17.040 50+ HK$15.870 100+ HK$15.140 250+ HK$14.470 More Pricing...	Total:HK$21.72 Min: 1 / Mult: 1	I2C, Serial	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	2.7V	5.5V	MSOP	MSOP	I2C, Serial	10Pins	-	-40°C	85°C	-