Real Time Clocks | element14 Australia

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

DS1338Z-33+	2518690 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year ss:mm:hh) I2C Serial 3 V to 5.5 V SOIC-8	Each	1+ $9.660 ($10.63) 10+ $7.410 ($8.15) 25+ $6.850 ($7.54) 100+ $6.230 ($6.85) 300+ $5.880 ($6.47) More Pricing...	Total:$9.66 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C, Serial	ss:mm:hh	RTC	ss:mm:hh	3V	5.5V	SOIC	8Pins	SOIC	I2C, Serial	-40°C	85°C	-	-	-
DS3231MZ+TRL	2515487 Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $17.160 ($18.88) 10+ $13.420 ($14.76) 25+ $12.480 ($13.73) 100+ $11.450 ($12.60) 250+ $10.960 ($12.06) More Pricing...	Total:$17.16 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	Alarm RTC	HH:MM:SS	2.3V	5.5V	NSOIC	8Pins	NSOIC	I2C	-40°C	85°C	-	-	-
DS1687-5+	2515431 Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Day/Date/Month/Year/Century hh:mm:ss Multiplexed 4.5 V to 5.5 V EDIP-24	Each	1+ $34.530 ($37.98) 14+ $26.980 ($29.68) 28+ $25.760 ($28.34) 112+ $23.940 ($26.33) 252+ $23.150 ($25.46) More Pricing...	Total:$34.53 Min: 1 / Mult: 1	Day; Date; Month; Year; Century	Multiplexed	HH:MM:SS	Alarm RTC	HH:MM:SS	4.5V	5.5V	EDIP	24Pins	EDIP	Multiplexed	0°C	70°C	-	-	-
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+ $1.510 ($1.66) 10+ $1.090 ($1.20) 100+ $0.856 ($0.94) 500+ $0.767 ($0.84) 1000+ $0.726 ($0.80) More Pricing...	Total:$1.51 Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	I2C	Binary	Calendar, Clock	Binary	900mV	5.5V	HWSON	8Pins	HWSON	I2C	-40°C	85°C	-	-	-
DS3234SN#	2519296 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Date/Month/Year hh:mm:ss) SPI 2 V to 5.5 V SOIC-20	Each	1+ $22.650 ($24.92) 10+ $17.860 ($19.65) 36+ $16.260 ($17.89) 108+ $15.280 ($16.81) 252+ $14.710 ($16.18) More Pricing...	Total:$22.65 Min: 1 / Mult: 1	YY-MM-DD	SPI	HH:MM:SS	RTC	HH:MM:SS	2V	5.5V	SOIC	20Pins	SOIC	SPI	-40°C	85°C	-	-	-
DS1307Z+T&R	2798723 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 4.5 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $7.510 ($8.26) 10+ $5.720 ($6.29) 25+ $5.260 ($5.79) 100+ $4.770 ($5.25) 250+ $4.530 ($4.98) More Pricing...	Total:$7.51 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	RTC	HH:MM:SS	4.5V	5.5V	SOIC	8Pins	SOIC	I2C	0°C	70°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+ $2.290 ($2.52) 10+ $1.670 ($1.84) 50+ $1.510 ($1.66) 100+ $1.340 ($1.47) 250+ $1.260 ($1.39) More Pricing...	Total:$2.29 Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	SPI	Binary	Calendar, Clock	Binary	1.1V	5.5V	TSSOP	14Pins	TSSOP	SPI	-40°C	85°C	-	-	-
PCF85063AT/AAZ	2890042 Data Sheet RoHS	NXP Real Time Clock/Calendar IC I2C 900 mV to 5.5 V HH:MM:SS: 12Hr / 24Hr YY-MM-DD-DW SOIC 8	Each (Supplied on Cut Tape) Cut Tape	1+ $1.230 ($1.35) 10+ $0.873 ($0.96) 100+ $0.687 ($0.76) 500+ $0.686 ($0.75) 1000+ $0.685 ($0.75) More Pricing...	Total:$1.23 Min: 1 / Mult: 1	YY-MM-DD-DW	I2C	HH:MM:SS: 12Hr / 24Hr	Calendar, Clock	HH:MM:SS: 12Hr / 24Hr	900mV	5.5V	SOIC	8Pins	SOIC	I2C	-40°C	85°C	-	-	-
DS1307ZN+T&R	2798724 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 4.5 V to 5.5 V supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $8.270 ($9.10) 10+ $6.300 ($6.93) 25+ $5.810 ($6.39) 100+ $5.270 ($5.80) 250+ $5.010 ($5.51) More Pricing...	Total:$8.27 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	RTC	HH:MM:SS	4.5V	5.5V	SOIC	8Pins	SOIC	I2C	-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+ $1.460 ($1.61) 50+ $0.947 ($1.04) 100+ $0.833 ($0.92) 500+ $0.692 ($0.76) 1000+ $0.654 ($0.72)	Total:$7.30 Min: 5 / Mult: 5	YYYY:MM:WK:DD:Hr:Min:Secs	I2C	Binary	Calendar, Clock	Binary	900mV	5.5V	TSSOP	8Pins	TSSOP	I2C	-40°C	85°C	-	-	-
DS3234SN#T&R	2798763 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) SPI 2 V to 5.5 V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ $20.070 ($22.08) 10+ $15.770 ($17.35) 25+ $14.700 ($16.17) 100+ $13.520 ($14.87) 250+ $12.960 ($14.26) More Pricing...	Total:$20.07 Min: 1 / Mult: 1	Day; Date; Month; Year	SPI	HH:MM:SS	RTC	HH:MM:SS	2V	5.5V	SOIC	20Pins	SOIC	SPI	-40°C	85°C	-	-	-
DS3231S#T&R	2798759 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ $18.210 ($20.03) 10+ $14.260 ($15.69) 25+ $13.290 ($14.62) 100+ $12.190 ($13.41) 250+ $11.680 ($12.85) More Pricing...	Total:$18.21 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	RTC	HH:MM:SS	2.3V	5.5V	SOIC	16Pins	SOIC	I2C	0°C	70°C	-	-	-
PCF8563T/F4,118	2841031 Data Sheet RoHS	NXP RTC Date Time Format (DD:MM:YY HH:MM:SS Century Flag) 400 kbit/s I2C 1.8V to 5.5V SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $2.590 ($2.85) 10+ $1.900 ($2.09) 50+ $1.730 ($1.90) 100+ $1.530 ($1.68) 250+ $1.440 ($1.58) More Pricing...	Total:$2.59 Min: 1 / Mult: 1	DD:MM:YY	I2C	HH:MM:SS	Alarm RTC	HH:MM:SS	1.8V	5.5V	SOIC	8Pins	SOIC	I2C	-40°C	85°C	-	-	-
M48T02-70PC1	9755764 Data Sheet RoHS	STMICROELECTRONICS RTC Timekeeper NVSRAM Parallel 4.75 V to 5.5 V DIP-24	Each	1+ $41.720 ($45.89) 5+ $37.250 ($40.98) 10+ $32.770 ($36.05) 25+ $32.220 ($35.44) 50+ $31.660 ($34.83)	Total:$41.72 Min: 1 / Mult: 1	YY-MM-DD-dd	Parallel	HH:MM:SS	Timekeeper	HH:MM:SS	4.75V	5.5V	DIP	24Pins	DIP	Parallel	0°C	70°C	-	-	-
RV-4162-C7-TA-QC-020	2358522 Data Sheet RoHS	MICRO CRYSTAL RTC IC Date Time Format (Day/Date/Month/Year/Century 12Hr / 24Hr) I2C 1 V to 4.4 V LCC-8	Each	1+ $8.790 ($9.67) 10+ $7.010 ($7.71) 25+ $6.530 ($7.18) 50+ $6.260 ($6.89) 100+ $6.000 ($6.60) More Pricing...	Total:$8.79 Min: 1 / Mult: 1	Day; Date; Month; Year; Century	I2C	12Hr / 24Hr	RTC	12Hr / 24Hr	1V	4.4V	LCC	8Pins	LCC	I2C	-40°C	85°C	-	-	-
MCP79510-I/MS	2361124 Data Sheet RoHS	MICROCHIP Alarm RTC IC Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr SPI 1.8 V to 3.6 V MSOP-10	Each	1+ $2.160 ($2.38) 25+ $2.000 ($2.20) 100+ $1.890 ($2.08)	Total:$2.16 Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	SPI	12Hr / 24Hr	Alarm RTC	12Hr / 24Hr	1.8V	3.6V	MSOP	10Pins	MSOP	SPI	-40°C	85°C	AEC-Q100	-	AEC-Q100
MCP79401-I/SN	2361118 Data Sheet RoHS	MICROCHIP Alarm RTC IC Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr I2C 1.8 V to 5.5 V SOIC-8	Each	1+ $1.720 ($1.89) 25+ $1.610 ($1.77) 100+ $1.520 ($1.67)	Total:$1.72 Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	I2C	12Hr / 24Hr	Alarm RTC	12Hr / 24Hr	1.8V	5.5V	SOIC	8Pins	SOIC	I2C	-40°C	85°C	-	-	-
MCP79400-I/MS	2361121 Data Sheet RoHS	MICROCHIP Alarm RTC IC Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr I2C 1.8 V to 5.5 V MSOP-8	Each	1+ $1.670 ($1.84) 25+ $1.540 ($1.69) 100+ $1.460 ($1.61)	Total:$1.67 Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	I2C	12Hr / 24Hr	Alarm RTC	12Hr / 24Hr	1.8V	5.5V	MSOP	8Pins	MSOP	I2C	-40°C	85°C	-	-	-
DS3231M+TRL	2515485 Data Sheet RoHS	ANALOG DEVICES Real Time Clock IC Alarm I2C HH:MM:SS Day; Date; Month; Year 2.3 V to 5.5 V WSOIC-16	Each (Supplied on Cut Tape) Cut Tape	1+ $18.060 ($19.87) 10+ $14.140 ($15.55) 25+ $13.160 ($14.48) 100+ $12.080 ($13.29) 250+ $11.570 ($12.73) More Pricing...	Total:$18.06 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	Alarm RTC	HH:MM:SS	2.3V	5.5V	WSOIC	16Pins	WSOIC	I2C	-40°C	85°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+ $18.110 ($19.92) 10+ $14.190 ($15.61) 25+ $13.200 ($14.52) 50+ $12.860 ($14.15) 100+ $12.510 ($13.76) More Pricing...	Total:$18.11 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	RTC	HH:MM:SS	2.7V	5.5V	DFN	20Pins	DFN	I2C	-40°C	85°C	-	-	-
DS1302Z+T&R	2515451 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Serial 2 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $7.650 ($8.42) 10+ $5.830 ($6.41) 25+ $5.370 ($5.91) 100+ $4.860 ($5.35) 250+ $4.630 ($5.09) More Pricing...	Total:$7.65 Min: 1 / Mult: 1	Day; Date; Month; Year	Serial	HH:MM:SS	RTC	HH:MM:SS	2V	5.5V	NSOIC	8Pins	NSOIC	Serial	0°C	70°C	-	-	-
DS1682S+T&R	2515483 Data Sheet RoHS	ANALOG DEVICES Elapsed Time Recorder IC I2C 2.5 V to 5.5 V NSOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $12.280 ($13.51) 10+ $9.490 ($10.44) 25+ $8.800 ($9.68) 100+ $8.030 ($8.83) 250+ $7.670 ($8.44) More Pricing...	Total:$12.28 Min: 1 / Mult: 1	-	I2C	-	Elapsed Time Recorder	-	2.5V	5.5V	NSOIC	8Pins	NSOIC	I2C	-40°C	85°C	-	-	-
DS1305+	2518659 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year 12Hr / 24Hr) 3 Wire Serial 2 V to 5.5 V DIP-16	Each	1+ $15.560 ($17.12) 10+ $12.120 ($13.33) 25+ $11.270 ($12.40) 100+ $10.320 ($11.35) 250+ $9.860 ($10.85) More Pricing...	Total:$15.56 Min: 1 / Mult: 1	Day; Date; Month; Year	3 Wire, Serial	12Hr / 24Hr	RTC	12Hr / 24Hr	2V	5.5V	DIP	16Pins	DIP	3 Wire, Serial	0°C	70°C	-	-	-
DS3232MZ+	2515490 Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 4.5 V supply NSOIC-8	Each	1+ $19.580 ($21.54) 10+ $15.360 ($16.90) 25+ $14.300 ($15.73) 100+ $13.150 ($14.46) 300+ $12.510 ($13.76) More Pricing...	Total:$19.58 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	Alarm RTC	HH:MM:SS	2.3V	4.5V	NSOIC	8Pins	NSOIC	I2C	-40°C	85°C	-	-	-
DS1338Z-3+	2515349 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.7 V to 5.5 V NSOIC-8	Each	1+ $8.380 ($9.22) 10+ $6.420 ($7.06) 25+ $5.930 ($6.52) 100+ $5.400 ($5.94) 300+ $5.140 ($5.65) More Pricing...	Total:$8.38 Min: 1 / Mult: 1	Day; Date; Month; Year	I2C	HH:MM:SS	RTC	HH:MM:SS	2.7V	5.5V	NSOIC	8Pins	NSOIC	I2C	-40°C	85°C	-	-	-